ygs67 发表于 2015-11-19 08:44:48

ASTM A434-06(R12)

ASTM A434-06(R12) Standard Specification for Steel Bars, Alloy, Hot-Wrought or Cold-F

admin 发表于 2015-11-19 10:37:59

谢谢您的分享,金币已奖励!
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