Product Description   Product Parameters Editing and broadcasting of main materials 1. Body, die-casting aluminum alloy; 2. Worm shaft, 20 Crq steel, high temperature treatment; 3. Worm gear, nickel bronze alloy; 4. Aluminum alloy body, sandblasting and surface anti-corrosion treatment; 5. Cast iron body, painted with bIu RA5571. Regular center distance specification editing and broadcasting … Continue reading China high quality Flange Mounted Model Nmrv Series Aluminum Worm Gearboxes for Low-Speed Applications with Good quality