... casting, iron ore, sinter, slag, iron oxide powder, coal, manganese dioxide, alumina powder, the oxidation of lead, aluminum, titanium, ... clay, clay, silica, sand, polishing materials, plaster, aluminum oxide powder. In the food and food industry: flour, soybean, peanut ... , sugar, vitamin supplements. In the plastic industry: plastic powder, plastic granules, grinding the chip materials. In the wood ...