... for floor machine Different ratios, namely 9.8:1,8:1 Gearbox is mainly used for floor machine, low speed polishing machine, etc.It can be made for ... iron, and the iron is with high strength.The conventional colours of the surface are black and grey. But also, it can ... plastic, also, there's 2-gear and 3-gear mounting. high quality gearbox for carpet cleaning mchine