damingcool 发表于 2017-9-12 08:09:41

ISO 898-1 2013

ISO 898-1:2013Mechanical properties of fasteners made of carbon steel and alloy steel -- Part 1: Bolts, screws and studs with specified property classes -- Coarse thread and fine pitch thread



admin 发表于 2017-9-14 09:04:27

谢谢您的分享,金币已奖励!
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