Cold Work Tool Steel Cr12,D3, SKD1 ,1.2080 1.More than 20 years of production experiences 2.Black or machined surface Cold Work Tool Steel Cr12,D3, SKD1 ,1.2080Characteristics:1.A kind ... , cold shearing ,drilling bushing ,gauge, wortle, coining die,thread rolling die, screw thread rolling die and so on, which are small impact load ...