... a new cable hose succeed to PVC plant pipe, double-wall corrugated pipe and multi-pipe. At present, it is ... characterized by corrosion-resistance, agereistor little friction coefficient of inner wall,good insulativity,and can be fixed very soon. It ... light and electric cable as pipeline.Integrated with three-layer co-extrusion,cooling and finalizing the design,drawing and winding,the production line ...