1,Single screw extruder; 2,Conical twin screw extruder; 3, 2layer; 3 layer;4 layer PPR pipe co-extrusion line; PPR, PE, HDPE, PE-RT pipe production line; 4, Corrugated pipe extrusion line (Single wall corrugated; Double wall corrugated); 5, LED light PC tube,profile cover making line. 6,PVC soft seal production line; Rigid rod production line. 7, 3 layer PVC pipe co-extrusion line; PVC pipe production line; 8, PVC 2 cavity pipe production line; 9, PVC 4 cavity pipe production line; 10,Mixing unit (Vertical , or Horizontal, or Ribbon); Color mixer; Hopper dryer; 11,Pipe belling machine; 12, WPC profile production line; and 2 layer PVC profile co-extrusion line; 13, Granulating line (PP PE ); 14, Granulating line (PVC).