BS EN ISO 9692-1-2003+C1:2004 焊接和相关工艺 接缝制备的建议 钢的
BS EN ISO 9692-1-2003+C1:2004 Welding and allied processes — Recommendations for joint preparation — Part 1: Manual metal-arc welding, gasshielded metal-arc welding, gas welding, TIG welding and beam welding of steels谢谢您的分享,金币已奖励! 什么都要金币,我却的就是井壁啊..... 谢谢您的分享谢谢您的分享
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