mechen 发表于 2014-3-10 09:11:58

ASTM B140&M-2012

ASTM B140&M-2012




admin 发表于 2014-3-10 10:03:36


谢谢您的分享，金币已奖励！

jinchao1207 发表于 2016-2-17 16:03:42

ASTM B140&M-2012 Standard Specification for Copper-Zinc-Lead (Red Brass or Hardware Bronze) Rod, Bar, and Shapes

yancangling 发表于 2016-8-1 09:36:19

资料很不错，谢谢分享
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