Excellent stability of hardness, heat/tearing/wearing-resisted, be suitable to medium carbon steel, hard surface making of low alloy steel, welding wearing/tearing-resisted work piece and industrial knives, automobile die, welding hot work die, cold work die, launching die, crushing die 1. The products above are all for welding only. 2. Only when use the right welding wire can repaire qualified mould. 3. All specification can be ordered.