... making machine 1.180-500kg output 2.16-630mm water pipe 3.high speed 12m/min 4.PLC control system PVC ... and corrosion resistance, hot and lukewarm water supply and drainage system, directly buried pipes of high and extra high voltage ... conical (parallel) double-screw extruder, vacuum sizing platform, tractor, cutting machine, stacker, etc. The conical (parallel) double-screw extruder and tractor ...