... injection molding. 1. our factory can make high quality plastic screw as per customer's drawing or sample.2. provide the one- ... petrochemical industry,household products,(OEM). Various plastic raw materials: PP,PE,PS,ABS,POM,PA,PBT,PPS,PPO,PEI, ... ,antistatic plastic,carbon fiber plastic,etc.Mould material: high-quality alloy steel with heat treatment,wear resistance,corrosion resistance, S136, SKD61 ...