... )General Plastics2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc3)PA + GF(Glass Fiber)4)Flame ... the important parts for plastic extruders and injection molding machine,they affect the machine performance and quality directly,therefore,QunYing established quality ... barrel12.Blocks screw13.Gear box14.screw barrel for blowing molding machine 1, Conical twin screw extruder is special equipment for all ...