... 4)in house quality full inspection. OEM machined parts in high precision and produced according to customers' drawing or samples1) ... steel, steel, brass or aluminum etc 2) Main equipment: CNC lathe, automatic lathe, grinder, thread rolling machine, tapping ... 01mm. Main products:Precision metal parts like various nuts,screws,axes,bolts,caps,stamping parts,sheet metal parts,stainless steel tubes,medical ...