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发表于 2017-5-23 20:55:44
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B 101 - 12 Standard Specification for Lead-Coated Copper Sheet and Strip for Building Construction
B 227 - 15 Standard Specification for Hard-Drawn Copper-Clad Steel Wire
B 228 - 11a (2016) Standard Specification for Concentric-Lay-Stranded Copper-Clad Steel Conductors
B 341 - B 341M - 02 Standard Specification for Aluminum-Coated (Aluminized) Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AZ)
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