The machine control circuit use all air quickcoupling 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。
2
The invention relates to a drilling machine which is mainly used for processing a plug part of a quickcoupling.
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。
3
The pipe quickcoupling 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.