定价： 910元 / 折扣价： 774 元

定价： 910元 / 折扣价： 774 元

定价： 1365元 / 折扣价： 1161 元

1. Scope 1.1 This Standard applies to the construction and performance of new propane fuel system components thatprovide motive power to highway vehicles with internal combustion engines. 1.2 This Standard does not apply to stationary or non-highway

定价： 1274元 / 折扣价： 1083 元

1 Scope 1.1 This Standard applies to independently operating gas compressor packages designed for installation in accordance with (a) CAN/CSA-B149.1 when used for filling vehicles; or (b) CSA B108 when used for filling gas storage or piping systems.

定价： 1274元 / 折扣价： 1083 元

1. Scope 1.1 This Standard applies to direct gas-fired equipment for drying farm crops that is constructed of noncombustible materials with nominal inputs up to and including 10 000 000 Btuh (3000 kW). 1.2 Dryers with inputs above 10 000 000 Btuh (

定价： 1138元 / 折扣价： 968 元

1. Scope 1.1 These provisions apply to the construction, materials, performance, and testing of NPS 1-1/4 in and smaller self-acting service-type regulators with internal relief valves or overpressure cut-off (OPCO) devices, or both, utilized to contro

定价： 1274元 / 折扣价： 1083 元

This PDF includes Update No. 2 Scope General This guideline incorporates ergonomics into a step-by-step process for the optimal design of office systems, including the design of jobs and work organization, layout of the office, environmental cond

定价： 1365元 / 折扣价： 1161 元

定价： 683元 / 折扣价： 581 元

Preface This is the first edition of CSA C2.2, Pole-mounted, single-phase distribution transformers for electric utilities. 1 Scope 1.1 This Standard specifies the requirements for distribution transformers intended primarily for operation by el

定价： 910元 / 折扣价： 774 元

定价： 1365元 / 折扣价： 1161 元

定价： 1229元 / 折扣价： 1045 元

C22.1-06 Preface This twentieth edition of the Canadian Electrical Code, Part I, was approved by the Committee on the Canadian Electrical Code, Part I, and by the Regulatory Authority Committee at their June 2005 meetings in Kelowna, British Columbi

定价： 865元 / 折扣价： 736 元

1. Scope 1.1 This Standard is intended to provide basic requirements for the evaluation of double-insulated cord-connected electrical equipment. 1.2 This Standard applies to equipment for use on circuits not exceeding 250 V-to-ground and designed

定价： 455元 / 折扣价： 387 元

1. Scope 1.1 This Standard applies to permanent adhesive labels and nameplates intended for use indoors or outdoors on application surfaces that are essentially clean, smooth, flat, or simple curved. 1.2 This Standard includes requirements for

定价： 501元 / 折扣价： 426 元