... water drainage pipe, electric conduit, etc., conical twin-screw extrusion equipment configuration of tubing, the corresponding mould, auxiliary equipment ... PVC pipe equipment adopts SGC63-SGC630 and models:3.Adopts conical twin-screw extruder features:4.Adopts ... beautiful appearance, smooth operation, the noise is small,The machine adopts copper aluminum heater, wind cooling system, heating, cooling ...