1) this production line uses the high efficient screw extruder developed by our company. It has the feature of high speed extrusion and high efficient plasticizing; 2) shielding double-pole mixed PP-R specialized screw is applied and the cylinder has channels in it; 3) being equipped with the new twice split-flow mold, it has the advantages of low temperature low pressure extrusion. Water film type diameter setting cover guarantees high speed production of plastic pipes; 4) controlled by the PLC computer program, this production line has a good set of human-machine interface; 5) this production line can choose to assemble label extrusion unit to produce pipes with colored label. It can also produce PE pipes by changing mold.