Used for making large area,complex shape and large impact cold work and tool 1.bar/wire dia:5.5~1000mm; 2.pipe/tube outdia:6~3500mm; 3.plate/coil wideth:10~2500mm; 4.strip/coil thickness:0.3~16mm 1. Application:Used for making large area,complex shape and large impact cold work and tool,like:punching moule,cold squeezing mould and circular saw 2. Chemical composition: C=1.2~1.30,Si ≤ 0.35,Mn≤0.5, ...