16908| 53
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曲軸中心孔偏1毫米想焊好后重打,求助 |
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點(diǎn)評(píng)
我們習(xí)慣上挑洋垃圾那種好點(diǎn)的鎢鋼中心鉆,你告訴硬度很高的,我們56HRC都可以的,但是不能太快了!
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