... ; Blow Molding Screw; PS/PE/PP/ABS Sheet Extrusion Screw; PE Aluminum Plate;PPR Pipe Screw ... Nitration:≤Two classMaterial Application1)General Plastics2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC, ... the screw and barrel are the important parts for plastic extruders and injection molding machine,they ... process is under strict inspection , Those provides solid foundation for our quality products!What we need to do ...