ASTM A 6-A 6M-12
ASTM A 6-A 6M-12 Standard Specification for General Requirements for Rolled Structural Steel Bars,Plates,Shapes,and Sheet Pilinghttp://bbs.infoeach.com/xwb/images/bgimg/icon_logo.png 该贴已经同步到 huanhuan8184的微博 谢谢您的分享,金币已奖励!
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