PVC window and door profile Extrusion Line raw material: PVC powdert twin screw extruder high quality extrusion mould PVC window and door profile extrusion line:Features:RJ Series PVC non-profiled material production line is mainly used in PVC door & window profiled material, wide door plate, window plate, extrusion of multi-holes pipe for passing through lines (four holes, six holes, seven holes ...