Precision forging and threading Material :Steel,Zinc,Aluminum,Brass We fabricate metal parts over 5.000.000pcs/year Product information for Precision forging and threading Material Steel,Zinc,Aluminum,Brass Surface Nickel plating, zinc plating and chrome plating. oxidation Tolerance +/-0.02mm Thread NPT,BSP,M,GHT,UN. Package Standard export carton with iron pallet for save ship Key dimension 100% ...