ygs67 发表于 2015-7-1 15:26:09

ASTM A505-12

ASTM A505-12 Specification for Steel, Sheet and Strip, Alloy, Hot-Rolled and Cold-Rolled, General Requirements for

admin 发表于 2015-7-2 11:35:04

谢谢您的分享,金币已奖励!
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