... Reducer Worm Gearbox Reducer 2.Model:RV030,Ratio:7.5-100 NMRV030 Ratio 1:7.5-1:100 Aluminium Double Extension Worm Shaft with ... Safe,reliable, economical and durable(6) Stable transmission, quiet operation(7) High heat-radiating efficiency, high carrying ability(8) Certificate of ... ,0.18kw,0.25kw,0.37kw,0.55KW,0.75kwUsages:In industrial machine: Food stuff,Ceramics,chemical, aswell as packing, ...