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killer007 发表于 2017-11-16 17:27:21

BS EN 12560-4 2001 Flanges and their joints — Gaskets for Class-designated fla

BS EN 12560-4 2001 Flanges and their joints — Gaskets for Class-designated flanges — Part 4：Corrugated, flat or grooved metallic and filled metallic gaskets for use with steel flanges

admin 发表于 2017-11-17 11:07:22

谢谢您的分享，金币已奖励!

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