The machine control circuit use all air quick coupling plug design, convenient and quick.
整机控制电路全部采用航空快速接头插接式设计，方便快捷。
The invention relates to a drilling machine which is mainly used for processing a plug part of a quick coupling.
本发明涉及一种钻孔机，其主要用于加工快速接头的插头部分。
The pipe quick coupling port structure has the advantages of high installation efficiency and high sealability in the coupling of such special pipes as straight pipes, bent pipes, T-joints and so on.
在直插管道与弯管、三通等异形管件的相互联接中，具有安装效率高、密封性能好的优点。
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