... Brass SizeH5.0* 14mmtolerance +/-0.01mmFinishGold platedprocess of producing 1) Automatic lathe, 2) BURR FREE ,3) Drilling 4)Nickel platedweight 8gUsefulelectronic ... , chrome plated,etcMachine equipmentcnc lathe,automatic lathe,hand lathe.thread rolling machine,tapping, drilling machine,molded flower machine, punching machine,milling,etc.4.Raw material5 ...