Product Name: Aluminium Alloy Gearbox for Valves Model NO.: RPC-WG-A Type: Worm Gear Box Step: Double-Step Installation: Vertical Type Hardness: Hardened Tooth Surface Layout: Coaxial Function: Change Drive Torque Application: Valve Shell Material: Aluminium Alloy Stem Material: Steel, Stainless Steel Color: Optional Trademark: RMIPLAST Transport Package: Carton Specification: 24: 1, 30: 1, 50: 1, 80: 1 Origin: China Mainland HS Code: 8483409000 Product Description Product name: Aluminiumalloy shell gearboxWG-A is manual operate worm gear box, fabricated by aluminium alloy shellwith high performance of corrosion resist and strengh, small and light body byelectroplated is in good appearanceBasic specificationGear Ratio: 24:1; 30:1; 50:1; 80:1Shell Material: Aluminium AlloyGear Material: QT450-10Gear Material: QT450-10Wheel Stem Material: #45 with nickel-platedWheel Material: Q235 with electroplatedFeature of ValveShell fabricated by aluminium alloy with electroplated, high performance of corrosion resist and strenghNickel-plated treated wheel stem with high performance of corrosion resistISO 5211 standard flange connection for installation.Standard and customized stem connection dimension for optional.Different colors of shell and wheel for optional