zure1972 发表于 2018-5-14 11:34:28

ISO 4759-3 : 2016

Tolerances for fasteners —
Part 3:
Washers for bolts, screws and nuts —
Product grades A, C and F

admin 发表于 2018-5-15 11:57:21

谢谢您的分享，金币已奖励!
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