Nmrv Double Step Helical Worm Gearbox

 Detailed Images   Product DescriptionElements:one. Housing: Die-cast Aluminium Alloy CZPT (RV571~RV090)Forged Iron CZPT (RV110~RV150)2. Worm Wheel: Wearable Tin Bronze Alloy, Aluminum Bronze Alloy3. Worm Shaft: 20Cr Steel, carburizing, quenching, grinding, area...