liuxilin1215 发表于 2015-12-23 09:42:03

ASME IX-2004 QUALIFICATION STANDARD FOR WELDING AND BRAZING PROCEDURES, WELDERS,

ASME IX-2004 QUALIFICATION STANDARD FOR WELDING AND BRAZING PROCEDURES, WELDERS, BRAZERS, AND WELDING AND BRAZING OPERATORS




admin 发表于 2015-12-23 17:18:52

谢谢您的分享，金币已奖励!
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