Nmrv factory 050 Worm Forward Reverse Gearbox with ce certificate top quality low price بواسطة ep | مارس 25, 2022 | Product CatalogProduct Description Detailed Photos Product DescriptionComponents:1. Housing: Die-cast Aluminium Alloy Gearbox (RV571~RV090)Cast Iron Gearbox (RV110~RV150)2. Worm Wheel: CZPT rable Tin Bronze Alloy, CZPT Bronze Alloy3. Worm Shaft: 20Cr Steel, carburizing, quenching,...