定价： 1001元 / 折扣价： 851 元

定价： 501元 / 折扣价： 426 元

定价： 546元 / 折扣价： 465 元

定价： 910元 / 折扣价： 774 元

定价： 910元 / 折扣价： 774 元

1 Scope 1.1 This Standard applies to single- and 3-phase dry-type transformers, including those with cast or resin encapsulated coils, that are within the limits of the electrical ratings listed in Clauses 7.2 and 7.3, and that are intended for use in a

定价： 683元 / 折扣价： 581 元

1. Scope 1.1 The provisions of this Standard apply to electrically operated single- and multiple-station carbon monoxide (CO) alarming devices, hereafter referred to as devices, intended for protection in ordinary indoor residential areas. These areas in

定价： 2275元 / 折扣价： 1934 元

Update No. 1 was published as notification that this is now a National Standard of Canada This PDF includes Update No. 1 Preface This is the second edition of CSA A123.16, Asphalt-coated glass-base sheets. It supersedes the first edition, publis

定价： 592元 / 折扣价： 504 元

Update No. 1 was published as notification that this is now a National Standard of Canada This PDF includes Update No. 1 1 Scope 1.1 This Standard deals with asphalt-coated roofing sheets composed of asphalt-saturated organic felt coated on one o

定价： 592元 / 折扣价： 504 元

Update No. 1 was published as notification that this is now a National Standard of Canada This PDF includes Update No. 1 A165.1-04 Concrete block masonry units 1 Scope This Standard applies to concrete block masonry units made from cementitiou

定价： 637元 / 折扣价： 542 元

定价： 1138元 / 折扣价： 968 元

Update No. 2 was published as notification that this is now a National Standard of Canada This PDF includes Updates #1, #2 and #3 1 Scope Notes: (1) For requirements pertaining to loads acting on connectors, see CSA S304.1. (2) For requirements

定价： 501元 / 折扣价： 426 元

Update #2 was published as notification that this is now a National Standard of Canada This PDF includes Update #2 A440-00 Windows 1. Scope 1.1 This Standard applies to both fixed and operable windows that are factoryand intended for vertic

定价： 1001元 / 折扣价： 851 元

1. Scope 1.1 This Standard covers burned clay brick intended for use in masonry or in structural facing components of structures, or both. 1.2 The brick are prismatic units available in a variety of sizes, textures, colours, and shapes. This Stan

定价： 364元 / 折扣价： 310 元

Update No. 1 was published as notification that this is now a National Standard of Canada This PDF includes Update No. 1 1 Scope 1.1 General This Standard applies to portable, integral chassis elevating work platforms with bases that cannot be

定价： 546元 / 折扣价： 465 元