7694| 15
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有用鑄鐵做絲杠的嗎? |
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點評
你這場合尼龍也可以,何必用鑄鐵,而且耐磨也和鑄鐵差不多
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點評
所以一過載,絲杠會斷,設備會出事故
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點評
是溫度高,油沒了,所以才掉粉,在繼續(xù)就會焊死在絲杠上
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