... high precision 3) Professional manufacturer 4) With ISO900 Bearing NO. ItemsProduction Capability1NameBearing2MaterialAluminum – 6061, 2024, 7075 etc ... heading steel, cold rolled steel, alloy steel, bearing steel, stainless iron, stainless steel; ductile iron ... - Wire EDM, drilling, turning, milling, grinding.Welding - Electrowelding, argon arc welding, spot or seam weldingForging, sand casting, die ...