1.Prehardened steel,ordinary toy mould,middle-small plastic mould and experiment mould 2.Competitive price 3.high quality Hot Rolled P20 Plastic Mould SteelPre-hardened to deal with 30-37HRC hardness plate spreads are usually greater than or equal to 4HRC, suitable for direct processing tool. Heat treatment can be combined with hard-to 46-50HRC, to make up for the non-quenched steel can not be ...
