N/a manufacturer / supplier in China, offering Jwell UPVC/CPVC Dual-Strand/Four-Strand Extrusion Line PVC Rigid Pipe/Polyvinyl Chloride Machine Hose Extruder, Jwell HDPE/PP/PVC Vertical Type Double Wall Corrugated/Wavy/Ripple Pipe Extrusion Line Machine, PPR Three-Layer Co-Extruded Pipe Production Line PPR/PE Multi-Layer Composite Pipe Extrusion Line and so on.