氣(qi)動(dong)(dong)刀閘閥(fa)（材質(zhi)碳鋼(gang)、對夾連接(jie)、帶手輪(lun)、配雙作用(yong)(yong)或單作用(yong)(yong)氣(qi)缸、選配氣(qi)動(dong)(dong)附件）
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