3442| 5
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1"的NPT螺紋加工出的深度和程序?qū)懙牟灰粯?/span> |
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點評
我就是問為啥不準(zhǔn),用G76做的,收尾是0,螺距2.209,正好少一個螺距。難道要故意多進去一點嗎?
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