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ir_71 发表于 2014-1-28 02:19:28

BS EN 10217-2:2002 Incorporating Amendment No. 1

BS EN 10217-2:2002 Incorporating Amendment No. 1
Welded steel tubes for pressure purposes. Technical delivery conditionsElectric welded non-alloy and alloy steel tubes with specified elevated temperature properties

admin 发表于 2014-2-10 15:22:55

谢谢您的分享，金币已奖励。

ygs67 发表于 2016-1-8 21:09:34

多谢分享！                             

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