... the process EFS, ESR or VAR.Applications:Highly stressed hot work tools in die forging presses for steels , brass and non ... for metal tube and rod extrusion, hot extrusion tools, single block inserts and dies for presses, tools for the manufacturer of hollows, ... , bolts and rivets, hot shear blades, forging dies and press die inserts, die casting tools ,hot forming dies, hot gripper and header dies ...