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20Cr的鍛鋼材料機加工后有誤差,想用焊肉填補,用什么材料的焊條比較好? |
Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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