9213| 15
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閥門上的閥桿斷了,不知道什么原因,有大神給講一下嗎 |
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點(diǎn)評(píng)
內(nèi)部有裂紋斷裂的地方裂紋處會(huì)很光滑,這個(gè)看不出有這種狀況
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Archiver|手機(jī)版|小黑屋|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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