论坛首页 › ASTM 美国材料与试验标准 › ASTM A574-16 Standard Specification for Alloy Steel Socket-Head Cap Screws

liuxilin1215 发表于 2017-2-21 10:44:42

ASTM A574-16 Standard Specification for Alloy Steel Socket-Head Cap Screws

ASTM A574-16 Standard Specification for Alloy Steel Socket-Head Cap Screws

gbt8163 发表于 2017-2-22 09:38:39

多谢楼主分享如此好资料

admin 发表于 2017-2-22 15:26:05

谢谢您的分享,金币已奖励!

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