Precision hardware Parts OEM service 10 Punching maching Quality certificate: ISO9001:2008 Experienced ... , such as machining, polishing, plating, and can supply carbon steel, stainless steel and alloy steel precision hardware parts.2. Standard: OEM service offered ... stems, valve caps, bolts of living, shafts; Pumps, pipes, and other components are available. We also supply other alloys as per specified ...