asnt2012 发表于 2018-8-9 17:32:32

BS EN 755-9 2016 Aluminium and aluminium alloys - Extruded rod/bar, tube and pro

BS EN 755-9 2016 Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 9: Profiles, tolerances on dimensions and form

admin 发表于 2018-8-10 18:16:02

谢谢您的分享,金币已奖励!
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