asnt2012 发表于 2018-7-9 11:18:20

BS EN 10305-4 2016 Steel tubes for precision applications - Technical delivery c

BS EN 10305-4 2016 Steel tubes for precision applications - Technical delivery conditions - Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systems

admin 发表于 2018-7-11 12:21:34

谢谢您的分享,金币已奖励!

hmgongyong 发表于 2019-12-24 14:42:11

非常感谢分享好的资料！

zhzhyun021707 发表于 2023-3-21 10:57:05

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