pneumatic chucking
... pneumatic chuck ==> 气动夹头,气动卡盘 pneumatic chucking ==> 气动卡紧 pneumatic circuit ==> 气动回路,气压管路,气压系统 ...
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QW50A气动卡瓦是油田修井作业时，安装在井口上用于卡紧油管及类似管柱的一种工具。
Model QW50A Air Operated Slips is a wellhead tools. Mainly used to clipping tubing and drilling rod which raise or put down at well repairing service operation.
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