... dimension:5x5-200x200mm copper forging:1.Material: Copper. The machined parts can be use other material according to customers' requirements ... works , turning ,finish machining.3.Major product:precision machined copper parts,sand casting,investment castings,forged casting,copper gear ,etc ... , die casting, forging, etc.Machining ISO 9001:2000 Machined to Drawings OR Samples CNC lathe Casting: Silica sol ...