... shape, withstand greater impact load a variety of molds and tools. For example, the insert on the complex shape of the punching ... , cold extrusion die, cold-cut scissors, circular saw, the standard tools, measuring tools, etc..4.Cr12MoV standard: GB / T-1299-19855.Chemical ... composition(for reference only): CSiMnSPCrNiCuvMo1.45~1.70≤0.40≤0.40 ...