... capability of producing 50,000 tons of free forging, ring forging and die forging annually.Our company own workshops and physical & ... chemical testing centers for free forging, die forging, material preparation, machining, and heat treatment. Shanghai ZENT ... press machine, RAM3800 CNC ring rolls, 3T electric-hydraulic hammer, frictioin press for 1600T,1000T and 630T, 10 gas ...