sanmaosjy 发表于 2017-11-27 10:03:11

JIS B 1099:2012 Fasteners - General requirements for bolts, screws, studs and n

JIS B 1099:2012 Fasteners - General requirements for bolts, screws, studs and nuts

admin 发表于 2017-11-28 12:25:55

谢谢您的分享，金币已奖励!
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