China Mask Assembly Line RV Worm Gearbox with Good quality

Item Description Comprehensive Pictures   Solution DescriptionParts:1. Housing: Die-forged Aluminium Alloy Gearbox (RV571~RV090)Cast Iron Gearbox (RV110~RV150)two. Worm Wheel: Wearable Tin Bronze Alloy, Aluminum Bronze Alloythree. Worm Shaft: 20Cr Steel, carburizing,...