Auto OEM Ersatzteile

1.Material of sewing machine , auto OEM spare parts:42CrMo4,(1.7225/1.7227) or 42CrMoS4 ,cold rolled and annealed; 2.Machining of parts of hydraulic equipment: Cold Forging-Turning-Special Frock(Tap Frock) Thread Rolled on(Rolled Thread) Drilling (Milling) , finish turning lathe 3.Surface Treatment( surface finish): Part to be free of nicks,burrs,tool marks,or other defects Part must be cleaned using ATOTECH Electrocleaner Phosphated and Oiled(EN 12476-Fe/Mnph/r/5/T4,alternate Fe/Znph/r/5/T4) Technical conditions according to FU 250 Breaking Load>9300N/ Through hardened 34±3 HRC 4.Checking Tensile and Yield Strength Surface Roughness geometric tolerance Form and Position Tolerance hardness and thickness of coating neutral salt spray test (NSS).