... competitive price with the high quality3.)materials:steel,stainless steel,brass,zinc alloy,aluminum,iron,and ect.4.)process/treatment: ... ,stamping,perforating, bending, welding,plating,powder coating,assembling,5.)machine:CNC lathes,machining centers,pressing machines,drilling machines,grinding mechines ... /metal components/metal processing14.)Quality garantee of ISO9001... zinc die casting parts