China OEM Nmrv Worm Gearbox Like Motovario near me factory

Product Description  Detailed Photographs   Product DescriptionComponents:1. Housing: Die-cast Aluminium Alloy Gearbox (RV571~RV090)Cast Iron Gearbox (RV110~RV150)2. Worm Wheel: Wearable Tin Bronze Alloy, Aluminum Bronze Alloy3. Worm Shaft: 20Cr Steel, carburizing,...