... PVC, U-PVC, C-PVC and M-PVC pipe for water supplying and dainage, electric pipe and so on. The line ... is composed by conical twin screw extruder, pipe mould, vacuum calibrator, cooling tank, haul-off machine, cutter, stacker, belling ... . The extrusion line is special for U-PVC, C-PVC water supply and water drainage pipe, electric conduit pipe, and cable pipe.It ...