论坛首页 › ASTM 美国材料与试验标准 › A53A53M-12 Pipe,Steel,Blank and Hot-Dipped,Zinc-Coated,Welded and Seamless (C)

五分头LW 发表于 2017-1-17 21:19:36

A53A53M-12 Pipe,Steel,Blank and Hot-Dipped,Zinc-Coated,Welded and Seamless (C)

A53A53M-12 Pipe,Steel,Blank and Hot-Dipped,Zinc-Coated,Welded and Seamless (C)

admin 发表于 2017-1-25 11:47:21

谢谢您的分享,金币已奖励。

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