Pipe series:Elbow,tee,cross,movable joint,Bu core,reducer,pipe cap, choke plug,inside the wire,outside the wire, turned-over edge, increaser etc.

• 管件类：弯头、三通、四通、活接头、卜芯、大小头、管帽、堵头、内丝、外丝、翻边、异径管。