... material:carbon steel,alloy steel 4.OEM are welcome wheel gear for loaders Quality System CertificateISO 9001Dimension ToleranceCT7Surface RoughnessRa6 ... stainless steel, iron, ductile... All sorts of our products are used on construction machinery, agricultural machinery, marine, railway, ... train, auto, motorcycle...Your tech drawing and specifications are welcomed for OEM. wheel gear for loaders