6063| 12
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這件活怎么做呀 |
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點(diǎn)評(píng)
一根長(zhǎng)220mm 直徑5mm 的紫銅管 要在上面車一個(gè)螺距是1。5的雙頭螺蚊 螺紋長(zhǎng)180mm
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點(diǎn)評(píng)
套住后反刀,反車,這樣不會(huì)壓玩,套內(nèi)要加油
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