... support including extruder election, formula process and extrusion mould.6. Material of the mould: special ... , mould can be post-co extrusion, color co extrusion, embossing co extrusion, surface layer and so on.8 ... support including extruder election, formulas process and extrusion mould13. Multi-cavity separate feeding system design ... adjust automatically Twin Screw PVC Sheet Extruder Machine