... : heat treatment 4. mechanical torsion synchrony Metal Working Machine: CNC Hydraulic Press Brake Machine 300T/6200 1. The W67K press brake has 300tons ... manufacturers like, Siemens, Estun. 2. The worktable, upper and bottom die, sliding rail, back gauge, etc. are conducted quenching treatment, which ... a gooseneck punch and a four-sided multi-V bottom die. 4. For more information on this or any of the ...