... worm reducer,aluminium gear box,stable transmission with lower noise. It's safe, reliable, economical and durable Gearbox: We can supply worm ... and disk stepless speed variatorgearbox We can supply worm gear speed reducers, as well as TXF series ... speed variators.Main type have : NMRV025, MRV030, NMRV040 .........NMRV150Ratio from 5 to 100Main material is Aluminiumgearbox,gear reducer, worm reducer