Material Iron Powder, Iron alloy powder Certificate ISO9001,TS16949 Tolerance +/- 0.002mm, Density Range 6-7.2/cm3(Fe) Surface Treatment Blacken,Dacromet Plated,Polishing,Sand Blasting,Electroplating Heat Treatment Ordinary Quenching,Carburizing, Ritriding, High Frequency Quenching...