mechen 发表于 2016-6-20 18:02:45

Industrial brazing practice by Philip Roberts

Industrial brazing practice by Philip Roberts

每周之星 发表于 2016-6-21 05:56:12

钎焊，好资料:handshake:handshake

admin 发表于 2016-6-21 16:26:28

谢谢您的分享,金币已奖励!
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