... 1.pvc doors 2.Environmental products 3.Wood-plastic profile 4.Wide door plate,decorat pvc doors is mainly used in PVC door & window profiled material, wide door plate ... holes, seven holes, nine holes, etc.) For different sectional surface and molds, twin parallel (conical) screws extruder of different specifications can ... as 4-meter, 6-meter, 8-meter, 11-meter, etc. pvc doors and windows extrusion line