Product Description Certificate: ISO9001/TS16949 Origin: China Material: Iron/copper/steel/OEM Material standard: MPIF 35, DIN 30910, JIS Z2550 Surface treatment: High frequency quenching, oil impregnation Quality control: 100 % inspection Application: Auto engine parts The part is an oxygen sensor (HEGO) boss that discharges hot exhaust gas, Which positions the oxygen sensor in the exhaust module of the automobile engine, the catalytic converter and the exhaust pipe. Forming density of not less than 7.2g / cm3, can be made into a variety of shapes, such as straight wall, stepped, angled, angled saddle seat and convex design. Powder metallurgy sensor boss seat to meet the weldability, heat resistance, fatigue strength, oxidation resistance and corrosion resistance requirements, but also in the exhaust flange, such as grooves, vaults and taper, such as the design of the structural characteristics The In addition to meeting the performance requirements, the powder metallurgy HEAD bosses are 30% -70% less costly than cold-forging or cutting products.