... introduction to PVC, CPVC, UPVC Pipe Making Machine, Plastic Pipe Production Line:PVC, CPVC, UPVC Pipe ... parallel) double-screw extruder, vacuum sizing platform, tractor, cutting machine, stacker, etc. The conical (parallel) double-screw extruder ... pipes and inner layer foaming pipes. The main technique parameterParameter\ModelSJPGZ-250SJPGZ-400SJPGZ-630Main machine modelSJZ-65SJZ-80SJZ-92Maximum ...