This is a injection mold made of high hardness and high wear resistance mold steel, which is custom processed. Mold machining is different from ordinary CNC machining, it requires higher precision, basically within 0.005, and requires the gap between each part, so a mold needs a lot of processes from the selection of materials to the completion of production. These include heat treatment processing of materials, CNC milling processing, wire cutting processing, electric spark processing, welding processing, grinding processing, and key mold assembly, so the mold needs to be repeatedly debugged again and again to finally present a precision mold.