This specification covers magnesium-alloy investment castings designated as AM100A, AZ81A, AZ91C, AZ91E, AZ92A, EQ21A, EZ33A, K1A, QE22A, ZE41A, and ZK61A. Sufficient stock shall be allowed for shrinkage and, where required, for finishing; but castings of excessive weight shall not be furnished. The castings shall conform to the chemical composition requirements prescribed for magnesium, aluminum, manganese, zinc, zirconium, rare earth elements, copper, nickel, silicon, iron, and other impurities, as determined by chemical analysis, and shall meet the specified requirements for the tensile properties such as tensile strength, yield strength, and elongation. Requirements for heat treatment and tensile test are detailed. The castings shall be of uniform quality and condition, free from cracks and other injurious defects, shall be cleaned before inspection by blasting or other approved process, and shall not be repaired by welding, impregnation, peening, or other method unless it is required.1.1 This specification covers magnesium-alloy investment castings designated as shown in Table 1.1.2 Alloy designations are in accordance with Practice E527; temper designations are in accordance with Practice B296.1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

5.1 These radiographs are so designed that acceptance standards, which may be developed for particular requirements, can be specified in terms of these radiographs. The radiographs are of castings that were produced under conditions designed to produce the discontinuities. These reference radiographs are intended to be used for casting thickness ranges in accordance with Table 1.5.2 The radiographic illustrations listed in Table 1 illustrate three types of discontinuities in four severity levels. Two ungraded illustrations have been included to establish the radiographic appearance of foreign material.5.3 These reference radiographs were produced in accordance with Guide E94. All of the references are original radiographs.5.4 Film Deterioration—Radiographic films are subject to wear and tear from handling and use. The extent to which the image deteriorates over time is a function of storage conditions, care in handling and amount of use. Reference radiograph films are no exception and may exhibit a loss in image quality over time. The radiographs should therefore be periodically examined for signs of wear and tear, including scratches, abrasions, stains, and so forth. Any reference radiographs which show signs of excessive wear and tear which could influence the interpretation and use of the radiographs should be replaced.1.1 These reference radiographs illustrate the categories and severity levels of discontinuities that may occur in aluminum-alloy and magnesium-alloy die castings. They are intended to provide:1.1.1 A guide enabling recognition of discontinuities and their differentiation both as to type and severity level through radiographic examination.1.1.2 Example radiographic illustrations of discontinuities and a nomenclature for reference in acceptance standards, specifications, and drawings.NOTE 1: The set of reference radiographs consists of five 81/2 by 11-in. cardboard frames containing radiographs covering discontinuities in aluminum and magnesium alloy die castings. The first four frames each contain two sets of four graded levels of increasing severity, while the last frame contains two ungraded radiographs. The 5 frames are contained in a 101/2 by 111/2-in. ring binder.NOTE 2: Reference radiographs applicable to aluminum and magnesium castings up to 2 in. (50 mm) in thickness are contained in ASTM Reference Radiographs E155, for Inspection of Aluminum and Magnesium Castings, Volumes I and II.1.2 Two kinds of illustration categories are covered as follows:1.2.1 Graded—Three discontinuity categories for aluminum die castings and three discontinuity categories for magnesium die castings, each illustrated in four levels of progressively increasing severity. Category A discontinuities are illustrated for aluminum and magnesium die castings having thicknesses of 1/8 in. (3.2 mm) and 5/8 in. (15.9 mm); Category B discontinuities are illustrated for 1/8-in. thick aluminum and magnesium die castings; and Category C discontinuities are illustrated for 5/8-in. thick aluminum and magnesium die castings.1.2.2 Ungraded—One illustration of one discontinuity for 0.20-in. (5.1-mm) thickness aluminum die casting; and one illustration of one discontinuity for 1/8-in. (3.2-mm) thickness magnesium die casting.1.3 This document may be used for other materials, thicknesses, or with other energy levels for which it has been found to be applicable and agreement has been reached between the purchaser and manufacturer.1.4 From time to time, there may be minor changes to the process for manufacturing of the reference radiograph adjunct materials. These changes could include changes in the films or processing chemicals used, changes in the dies or printing for the cardboard mats, etc.; however, in all cases, these changes are reviewed by the Illustration Monitoring Subcommittee and all reference radiographs are reviewed against a fixed prototype image to ensure that there are no changes to the acceptance level represented by the reference radiographs. Therefore, the adjunct reference radiographs remain valid for use with this standard regardless of the date of production or the revision level of the text standard.1.5 These film reference radiographs are not intended to illustrate the types and degrees of discontinuities found in aluminum and magnesium die castings when performing digital X-ray imaging. When performing digital X-ray imaging of these castings, refer to Digital Reference Images E2973.1.6 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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This practice establishes the requirements for physical item identification marking of aluminum and magnesium products. Package marking for shipment and inspection acceptance is not within the scope of this standard. Wrought aluminum and magnesium mill products shall be marked for identification purposes only with the following information on the product or on tags attached to the product: (1) name or registered trademark of the company, (2) alloy and temper of the product, (3) basic number of the specification to which the product was produced, (4) specified (ordered) dimensions of the following products: sheet and plate, coiled wire and spooled wire, straight length tube and coiled tube, and pipe, (5) lot number, and (6) the word "seamless" on certain tube or pipe. Spot marking requirements for the following wrought aluminum and magnesium mill products are detailed and illustrated: (1) coiled sheet, (2) flat sheet and plate, (3) circles, (4) tread plate, (5) foil, (6) rod, bar, and extruded profiles, (7) structural profiles, (8) tube and pipe, (9) wire, (10) bus bar, and (11) forgings such as hand and die forgings. Requirements for marking cast aluminum and magnesium products (castings, remelt ingot for castings, and ingot or billet for fabricating), unalloyed aluminum and magnesium ingot, and special products are specified.1.1 This practice establishes the physical item marking requirements for identification purposes for aluminum and magnesium products. Package marking for shipment and inspection acceptance is not within the scope of this standard.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

This specification establishes the properties and requirements for pigments that consist substantially of natural hydrous magnesium silicate (talc), and can be suitably processed to what is commercially known as paint pigment quality. Specimens shall be suitably sampled and tested, and should conform to specified requirements as to combined magnesium and calcium silicates content, calcium oxide content, aluminum and iron oxides content, loss on ignition, moisture and other volatile material, color, coarse particles, water-soluble matter, oil absorption, consistency, and fineness.1.1 This specification covers pigments that consist substantially of natural hydrous magnesium silicate, and is restricted to those minerals that conform to the chemical limits prescribed herein and can be suitably processed to what is commercially known as paint pigment quality.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 The following hazard caveat applies to the test method portion of this specification only. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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This specification covers the standard for magnesium alloys in ingot and stick forms proposed for used in remelting. Magnesium 9980A alloys are available in ingot and stick form. Magnesium 9980B, 9990A, 9995A, and 9998A, on the other hand, are generally available in ingot form only. The specimens shall be produced with no slag and shall have a clean surface free from dirt, slag, or other foreign contaminants. Alloys shall adhere to specified chemical composition requirements. Any suitable chemical analysis method can be used unless otherwise prescribed.1.1 This specification covers magnesium in the form of ingot and stick for remelting: 9980A is available in ingot and stick form, and 9980B, 9990A, 9995A, and 9998A are generally available only in ingot form.1.2 The values stated in SI units are to be regarded as a separate standard. The values stated in each system are not exact equivalents, therefore each system must be used independently of the other.1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

These test methods for the chemical analysis of metals and alloys are primarily intended to test such materials for compliance with compositional specifications. It is assumed that all who use these test methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.1.1 These test methods cover the chemical analysis of magnesium and magnesium alloys having chemical compositions within the following limits:Aluminum, % 0.5 to 12Copper, % 0.005 to 0.1Iron, % 0.002 to 0.1Lead, % 0.001 to 0.5Manganese, % 0.01 to 2.0Nickel, % 0.0005 to 0.5Rare earth elements, % 0.2 to 10Silicon, % 0.01 to 0.8Thorium, % 0.2 to 25Tin, % 0.5 to 10Zinc, % 0.3 to 20Zirconium, % 0.03 to 1.0Magnesium, % remainder1.2 The analytical procedures appear in the following order: SectionAluminum: Benzoate-Oxinate (Gravimetric) Method 8-15Sodium Hydroxide (Potentiometric) Method (Optional Routine Method) 16-23Copper: Neocuproine (Photometric) Method 24-33Hydrobromic Acid-Phosphoric Acid (Photometric) Method 34-43Iron by the 1,10-Phenanthroline (Photometric) Method 44-53Lead by the Dithizone (Photometric) Method 54-63Magnesium-Analysis for Manganese an Zinc by Direct Current Plasma Spectroscopy (Proposal) Manganese by the Periodate (Photometric) Method 64-73Nickel: Dimethylglyoxime Extraction (Photometric) Method 74-83Dimethylglyoxime (Gravimetric) Method 84.-91Rare Earth Elements by the Sebacate-Oxalate (Gravimetric) Method 92-98Silicon: Perchloric Acid (Gravimetric) Method 99-104Molybdosilicic Acid (Photometric) Method 105-114Thorium by the Benzoate-Oxalate (Gravimetric) Method 115-121Tin by the Iodine (Volumetric) Method 122-129Zinc: Ethylenediamine Tetraacetate (Volumetric) Method 130-137Potassium Ferrocyanide (Volumetric) Method 138-144Zirconium by the Alizarin Red (Photometric) Method 145-1541.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautions are given in Section 5.

定价： 0元 / 折扣价： 0 元

3.1 This specification is prescriptive and not performance in nature.AbstractThis specification covers the standard requirements for magnesium alloy anodes in the form of cast and extruded shapes for use in cathodic protection. Materials shall adhere to specified chemical composition requirements, the samples for analysis of which shall be taken either from the molten metal when the cast anode or extrusion ingot is poured, or from the finished anode. Anodes shall have a clean surface and be commercially free of dirt, slag, or other foreign material.1.1 This specification covers magnesium alloy anodes in the form of cast and extruded shapes.1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

4.1 This test method for the chemical analysis of metals and alloys is primarily intended to test such materials for compliance with compositional specifications. It is assumed that all who use this test method will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory.1.1 This test method covers the chemical analysis of magnesium ferrosilicon having chemical compositions within the following limits:Element Composition Range, % Aluminum 2.0 maxCalcium 0.25 to 3.00Carbon 0.50 maxCerium 1.0 maxChromium 0.50 maxMagnesium 2.00 to 12.00Manganese 1.0 maxSilicon 40.00 to 55.00Sulfur 0.025 maxTitanium 0.2 max1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For general precautions to be observed in this test method, refer to Practices E50.1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

4.1 These digital reference images are intended for reference only, but are so designed that acceptance standards, which may be developed for particular requirements, can be specified in terms of these digital reference images. The illustrations are digital images prepared from castings that were produced under conditions designed to develop the discontinuities. The images of the 1/4 in. (6.4 mm) castings are intended to be used in the thickness range up to and including 1/2 in. (12.7 mm). The images of the 3/4 in. (19.1 mm) castings are intended to be used in the thickness range of over 1/2 in. (12.7 mm), up to and including 2 in. (50.8 mm).4.2 Image Deterioration—Many conditions can affect the appearance and functionality of digital reference images. For example, electrical interference, hardware incompatibilities, and corrupted files or drivers may affect their appearance. The ASTM E2002 line pair gauges located in the lower right hand corner of each digital reference can be used as an aid to detect image deterioration by comparing the measured resolution using the gauges to the resolution stated on the digital reference image. Do not use the digital reference images if their appearance has been adversely affected such that the interpretation and use of the images could be influenced.4.3 Agreement should be reached between cognizant engineering organization and the supplier that the system used by the supplier is capable of detecting and classifying the required discontinuities.1.1 These digital reference images illustrate the types and degrees of discontinuities that may be found in magnesium-alloy castings. The castings illustrated are in thicknesses of 1/4 in. (6 mm) and 3/4 in. (19.1 mm).1.2 All areas of this standard may be open to agreement between the cognizant engineering organization and the supplier, or specific direction from the cognizant engineering organization. These items should be addressed in the purchase order or the contract.1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.4 These digital reference images are not intended to illustrate the types and degrees of discontinuities found in magnesium-alloy castings when performing film radiography. If performing film radiography of magnesium-alloy castings, refer to Reference Radiographs E155.1.5 Only licensed copies of the software and images shall be utilized for production examination. A copy of the ASTM/User license agreement shall be kept on file for audit purposes.NOTE 1: The set of digital reference images consists of 14 digital files, software to load the desired format and specific instructions on the loading process. The 14 reference images illustrate eight grades of severity and contain an image of a step wedge and two duplex wire gauges.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

3.1 The processes described in this practice clean and provide a paint base for the finishing of magnesium and magnesium alloys. Service conditions will determine, to some degree, the specific process to be applied.1.1 This practice covers a guide for metal finishers to clean and then provide a paint base for the finishing of magnesium and magnesium alloys using chemical conversion coatings. Where applicable (for example, aerospace) secondary supplementary coatings (for example, surface sealing) can be used (see Appendix X1).1.2 Although primarily intended as a base for paint, chemical conversion coatings provide varying degrees of surface protection for magnesium parts exposed to indoor atmosphere either in storage or in service under mild exposure conditions. An example is the extensive use of the dichromate treatment (see 5.2) as a final coating for machined surfaces of die cast magnesium components in the computer industry.1.3 The traditional numbering of the coating is used throughout.1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 646元 / 折扣价： 550 元 加购物车

3.1 This test method distinguishes magnesium sulfate from other water soluble non-tanning salts found in leather.1.1 This test method covers quantitatively determining the magnesium sulfate (epsom salt) in leather.1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

1.1 This terminology covers the principal terms and definitions relating to aluminum- and magnesium-alloy products. It is published to encourage uniformity of terminology throughout Committee B07 product specifications.1.2 Certain definitions and definitions of terms specific to a standard will remain in the individual standards and will not be included in this terminology (see 3.4).1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

This practice covers a system for designating the tempers of magnesium alloys, cast and wrought. The designations for temper are used for all forms of magnesium and magnesium-alloy products except ingots and are based on the sequence of basic treatments used to produce the various tempers. The temper designation follows the alloy designation, the two being separated by a dash.1.1 This practice covers a system for designating the tempers of magnesium alloys, cast and wrought. The designations used in ASTM specifications under the jurisdiction of Committee B07 for magnesium alloy castings and wrought products conform to this practice.21.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

5.1 This test is a guide for evaluating magnesium anodes. The degree of correlation between this test and service performance has not been fully determined.5.2 Test specimens from the same casting may not be identical because of inhomogeneities in the casting. A method of ensuring that identical test specimens are being evaluated is to retest a test specimen. The surface of the test specimen should be smoothed by machining before retesting. The new diameter should be measured and the test current adjusted so that the retest current density is 0.039 mA/cm2 (0.25 mA/in.2).5.3 The values of potential and Ah per unit mass consumed as measured by this test method, may not agree with those found in field applications. It is unlikely that field results of Ah per unit mass consumed would ever be greater than those measured in this test. However, actual test comparisons are not sufficient to allow precise correlation of laboratory and field results.1.1 This test method covers a laboratory procedure that measures the two fundamental performance properties of magnesium sacrificial anode test specimens operating in a saturated calcium sulfate, saturated magnesium hydroxide environment. The two fundamental properties are electrode (oxidation) potential and ampere hours (Ah) obtained per unit mass of specimen consumed. Magnesium anodes installed underground are usually surrounded by a backfill material that typically consists of 75 % gypsum (CaSO4·2H2O), 20 % bentonite clay, and 5 % sodium sulfate (Na2SO4). The calcium sulfate, magnesium hydroxide test electrolyte simulates the long term environment around an anode installed in the gypsum-bentonite-sodium sulfate backfill.1.2 This test method is intended to be used for quality assurance by anode manufacturers or anode users. However, long term field performance properties may not be identical to property measurements obtained using this laboratory test.NOTE 1: Refer to Terminology G193 for terms used in this test method.1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific precautions, See Section 8 and Paragraph 9.1.1.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

4.1 This test method provides a procedure for making a preliminary estimate of the soundness of aggregates for use in concrete and other purposes. The values obtained may be compared with specifications, for example Specification C33/C33M, that are designed to indicate the suitability of aggregate proposed for use. Since the precision of this test method is poor (Section 13), it may not be suitable for outright rejection of aggregates without confirmation from other tests more closely related to the specific service intended.4.2 Values for the permitted-loss percentage by this test method are usually different for fine and coarse aggregates, and attention is called to the fact that test results by use of the two salts differ considerably and care must be exercised in fixing proper limits in any specifications that include requirements for these tests. The test is usually more severe when magnesium sulfate is used; accordingly, limits for percent loss allowed when magnesium sulfate is used are normally higher than limits when sodium sulfate is used.NOTE 2: Refer to the appropriate sections in Specification C33/C33M establishing conditions for acceptance of coarse and fine aggregates which fail to meet requirements based on this test.1.1 This test method covers the testing of aggregates to estimate their soundness when subjected to weathering action in concrete or other applications. This is accomplished by repeated immersion in saturated solutions of sodium or magnesium sulfate followed by oven drying to partially or completely dehydrate the salt precipitated in permeable pore spaces. The internal expansive force, derived from the rehydration of the salt upon re-immersion, simulates the expansion of water on freezing. This test method furnishes information helpful in judging the soundness of aggregates when adequate information is not available from service records of the material exposed to actual weathering conditions.1.2 The values stated in SI or inch pound units shall be regarded separately as standard. The inch –pound units are shown in brackets. The values stated are not exact equivalents; therefore each system shall be used independently of the other. Combining values from the two systems may result in nonconformance.1.3 Some values have only SI units because the inch-pound equivalents are not used in practice.1.4 If the results obtained from another standard are not reported in the same system of units as used by this test method, it is permitted to convert those results using the conversion factors found in the SI Quick Reference Guide.2NOTE 1: Sieve size is identified by its standard designation in Specification E11. The alternate designation given in parentheses is for information only and does not represent a different standard sieve size.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车