5494| 13
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請(qǐng)教直線(xiàn)滑臺(tái)不加銷(xiāo)釘能保證精度嗎? |
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點(diǎn)評(píng)
那是螺絲孔
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點(diǎn)評(píng)
這里說(shuō)的是側(cè)面吧。
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