Precision forging and threading Material :Steel,Zinc,Aluminum,Brass We fabricate metal parts ... 5.000.000pcs/year Product information for Precision forging and threading Material Steel,Zinc,Aluminum,Brass Surface Nickel plating, zinc plating ... dimension 100% inspection before be shiped Main processes Machining,, drilling, threading, knurling. Turning, Drilling, Inspection At least 5 times of inspection ...