... production experiences 2.Black or machined surface Cold Work Tool Steel Cr12,D3, SKD1 ,1. ... 2080Characteristics:1.A kind of widely used cold work tool steel, belong to carbon chromium ledeburitic ... to national standard (GB)for our products, if not, supply according to national standards(GB) or agreement ... . 2. We can not only provide electric furnace +LF+VD and ...