1)Material Steel 2)Shaping Mode Punching Mold 3)Die Material: SKD11, cr8mo2siv, DC53 and so on 4)) 1997 Established 5) ISO9001: 2008 by SGS. Some statistics of our progressive metal punching mould 1. Quality: Tolerance of spare parts is within 0.002mm, tolerance of feeding length is within 0.003mm-0.005mm, and roughness is within Ra0.04-Ra0.1. 2. Efficiency: Stamping speed reaches 300 to 450 srokes per minute 3. Durability: Regrinding life reaches 1.2 million to 3 million, while totle life from 120 million to 250 million strokes. Metal box and wooden box of progressive die.