Profile: Qingdao Sun Joy Plastic Machinery Co., Ltd. is a manufacturer of plastic machinery and conical twin-screw extruder. Our main product line includes WPC machinery, PVC/PP/PE/ABS profile extrusion, large diameter HDPE pipe extrusion, XPS foamed plate production, and siding panel extrusion line. Our small profile extrusion line consists of single screw extruder, vacuum calibration table, haul-off unit, cutter and stacker. It features high output capacity, and low power consumption. The extruder speed is controlled by AC inverter. SJGF series PVC plastic pipe production line is mainly used for producing U-PVC and C-PVC pipes.