alldoing1 发表于 2018-5-18 11:44:55

ASTM B 498B 498M-2008 Standard Specification for Zinc-Coated (Galvanized) Steel

ASTM B 498B 498M-2008 Standard Specification for Zinc-Coated (Galvanized) Steel Core Wire for Use in Overhead Electrical Conductors

admin 发表于 2018-5-18 11:47:39


谢谢您的分享，金币已奖励!
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