5788| 13
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3系不銹鋼加工,出現(xiàn)各種批鋒毛刺,如何優(yōu)化工藝 |
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點(diǎn)評(píng)
有聽(tīng)說(shuō)過(guò),徽量潤(rùn)滑嗎?還有-260度,冷卻。。。是不是太高端了。。。俺只看過(guò)視頻。。
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