... design, mould design, mould manufacture, injection/moulding Mould steel: P20,718,718H,2738,2316,S136(option) Cooling system ... treatment:tempering the material in order to harden the steel;nitrided Final finish: chrome paiting (option); All tools ... , Aluminum Molds, PU Molds, Two-colors Moulds, Over Molding, Rotational Molds, Insert Molding, Heat-treating, Polishing, Plating, Painting, Logo Printing, ...