Extrusion Line, Pipe Making Machine manufacturer / supplier in China, offering High Efficient 110-315mm Conical Double Screw Plastic Extruders PVC Pipe Production Line, Cheap Price Horizontal PVC High Speed and Cool Mixer Unit Ready for Dispatch in Stock, PVC Water - Supply and Drainage Pipe Extrusion Production Line with Twin - Screw Extruder for Residential Use 16-630mm and so on.