Product Description Technology: Powder Metallurgy Surface Treatment: Quenching, Polishing Material Standard: MPIF 35, DIN 30910, JIS Z2550 Density: 6.2 - 7.1 g/cm3 Macro Hardness: 45-80 HRA Tensile Strength: 1650 Mpa Ultimate Yield Strength(0.2%): 1270 Mpa Ultimate Size:Customized Size Customized complex structure powder metallurgy gears, density, technical requirements are fully customized. OEM powder metallurgy gears