... 16-630mm 3>Material: PVC, CPVC, UPVC 4>One Year Quality Gurantee PVC, CPVC, UPVC pipe production line, pipe making machineSJSZ ... and thickness. They are applied to agricultural and construction water supply and drainage, overhead or underground wire and cable. Due ... require high temperature and corrosion resistance, hot and lukewarm water supply and drainage system, , directly buried pipes of high and ...