... This PVC profile extrusion line consist of extruder,vaccum calibrator platform,cutter,haul-off and stacker. PVC special-shaped material extrusion line(plastic extrusion machine ... screw extruder. The wood-plastic mixing extruding production line adopts special-designed screw, material cylinder, moulds ... YF model shaped material ancillary to produce PE, PP or PVC wood-plastic special-shaped products. It ...