7973| 15
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生料带密封处全部漏油,油温较高 |
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点评
我们的锥螺纹就是让机加工厂加工的 1/4 NPT 的
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Archiver|手机版|小黑屋|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
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