... Tempered Steel, Cast Iron, Aluminum, Copper, Brass and so on 2. Heat Treatment: Hardening and Tempering, High Frequency Quenching, Carburizing Quenching ... Treatment, Spray Printing, Mirror Finish, Burnishing, Sand-blasting and so on according to ROHS demand. 4. Inspection: All ... 6. Good quality with reasonable price, timely delivery and great customer service. Contact person: AnnaPhone: 86-15102249548 ...