Plastic Machinery, Extruder Machine manufacturer / supplier in China, offering Corrugated Pipe Duct Produce Line Cod Optical Corrugation Duct Extrusion Machine, PE Corrugated Pipe Extrusion Line HDPE Corrugated Pipe Hose Extrusion Making Machine, High Quality Flexible Slotted Conduit Cod HDPE PE PP Hose Machine and so on.