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chzy_114
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樓主  發(fā)表于: 2009-05-24 12:05
在推進(jìn)夾緊和后退放松動(dòng)作采用液壓還是氣動(dòng)合適？性?xún)r(jià)比如何？
zhidaoshenmo
雖然我們不是“富二代”，但是我們還有成為“富一代”的機會(huì )。
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1樓  發(fā)表于: 2009-05-24 12:41
各有所長(cháng)啊.液壓不受工作場(chǎng)所限制.而氣壓就不一樣咯
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