2074| 14
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直徑200不全形光滑塞規(guī)圓度要求多少? |
評分
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點(diǎn)評
你非要問,那我說1/3合理( ̄▽ ̄)"
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點(diǎn)評
不合理。本就是不全形量規(guī),尺寸又比較大,3u合適。
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