Model Number: I-446 Brand Name: IC Key Specifications/Special Features: Material mild carbon steel: C15, C35, C45Stainless steel: SUS201, 304, 316Iron: 12L14.12L15Brass: C3602, C3604, Hpb62, Hpb68, Hpb70 other bronze and copperHeat treatment: tempering, hardening, stress reliving, spheroidizingSurface treatment: zinc, nickel, bronze, copper, phosphate, oxidation black, passivation, tin, gold, chrome, silver & moreDimension standard: non-standard, PEM standard or base on the drawing or samplesManufacturing process:Precision turning parts- secondary processingProcess equipment CNC turning machineTesting equipment: hardness test, torsion testTolerance +/-0.003mm, +/-0.002 inch