... .On-time delivery 4.Excellent service plastic injection file cover mould plastic injection file cover mould is a type of molding process ... the designing and manufacturing of double color mold. plastic injection file cover mould produced by Minghao is of high quality and ... ,DME,etc.5. We use various plastic materials,such as PP,PE,PU,PC,PVC,ABS,PMMA,etc.6. We will ...