... bar Cr12MoV1. high carbon steel flat bar Cr12MoV2.Cr12MoV steel with high hardenability,good hardness and wear resistance,less change the volume when the ... of molds and tools. For example, the insert on the complex shape of the punching concave mold, complex mold steel sheet ... panels, cold extrusion die, cold-cut scissors, circular saw, the standard tools, measuring tools, etc..4.Cr12MoV standard: GB / ...