... injecton machines We have rich experience in manufacturing relay components for automobile,such as relaymanufacture processing of plastic parts and plastic injection ... in relay socket,relay plug,relay plastic part and mould for automobile.The following is brife introduction of our factory:Customize ... can do much smaller ones.Various plastic raw materials: PP,PE,PS,ABS,PVC,HDPE,EPDM,PPS,PPO,POM,nylon, ...