1,water,conduit,electric 2,certification:CE,ISO9001 3,out capacity:60-720kgs/h 4,competitive price pvc pipe production linePVC pipe line is ... mainly used in the production of double PVC pipe water drainage pipe, electric conduit, etc., conical twin-screw extrusion equipment configuration of ... inverter, stable output torque motor, which can realize stepless speed. upvc pipe extrusion machine