Working Principle 1.It uses brushes or attrition roller to peel off the deeper skin of vegetables&fruits, and the peeled material's surface is very smooth. 2.While peeling the vegetable or fruit, there is high pressure water cleaning them at the same time. Application 1.It is suitable for washing root vegetables like carrot, turnip, ginger, potato, taro, sweet potato, beet, radish, turnip, garlic, onion, lotus roots, and fruits like apple, pear ect. 2.Suitable for those kithchens of school, restaurant, big facotry, food processing facotry, supermarket, etc.