... mold making,injection molding. 1. our factory can make high quality plastic screw as per customer's drawing or sample. ... manufacture,injection molding,assembly.The following is the brife introduction of our factory:Customize micro(3*3*3mm) -to- ... PLA,antistatic plastic,carbon fiber plastic,etc.Mould material: high-quality alloy steel with heat treatment,wear resistance,corrosion resistance, S136, SKD61 ...