... engineers’ hard researching. This new type mill adopts bevel gear overall drive, inner automatic Thin-Oil lubricating system, ... air channel and several latest patent technology. 1) Bevel gear overall drive: the traditional grinding mill is driven by ... , talcum, barite, fluorite, thulium,marble, porcelain, bauxite, manganese, iron ore, copper ore, phosphorite, ferric oxide(red), zirconium, slag, ...