... effective vent type single screw or co-rotation parallel twin screw Extrusion line for pigment palletizing:This line is one of our ... leading products. It is used with high effective vent type single screw extruders or ... PIST, ABS, PPS, PC, PET, PMMA etc. for master-batch granulation.The line iconsists of high-speed mixer, feeding device, extruder ...