steel shaft for electronics 1.Max. precision 0.005mm 2.Mainly ... time OEM available Shenzhen Mechanic Industrial Co., Ltd. Material: carbon steel, stainless steel, aluminum, brass, gray cast iron, nodular cast iron, or ... machine Finishing: zinc plating, nickle plating, chrome plating, phosphating, polishing, case hardening, carburization hardening, sand blasting, anodizing.OUR EQUIPMENT