The line use highly active screw extruder that we developed, and it has the characteristics of high speed extrusion and high plasticization. PP-R special screw notches barrel. The newly equipped twice distributaries mold can extrude products under low temperature and low pressure. The water film dia. fixed tube can ensure the high-speed production. The production line is controlled by PLC program and equipped with perfect man-machine interface. After extruding by the identified line, it can produce pipes with identified color line. When the production line changes its mold, it can produce PE pipes.