发布时间:2025-01-29 21:00:02
轴径∅4m6-----上偏差为+0.012,下偏差为+0.004,公差为0.008,这是个尺寸较精密的零件。
咱们来谈谈有点懵碧桂园森林城市是在哪的呀只有我一个不知道的吗
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