ygs67 发表于 2015-6-17 10:24:27

ASTM A928 A928M-13

ASTM A928 A928M-13 Standard Specification for FerriticAustenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Meta

admin 发表于 2015-6-18 08:32:52

谢谢您的分享,金币已奖励
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