Used
 in automobiles crankcase ventilation pipe tubes connect the air pipe 
connection Not only can rely on the inner hole wall of a butt joint and 
the sealing ring of the trachea joint interference fit to realize the 
two kinds of joint connections, and by docking a card table face to 
match the tracheal joint cuneate raised face, realize the double 
insurance
●Provide quick connector for automotive piping system.
●Provide a quick connection for the secondary matching system.
●Installation and removal of the product do not require installation tools.
●Suitable for pipe fittings conforming to universal standard (in accordance with German VDA standard)