... paperOil refining, training oil, transformer oil, oil additives, oil regeneration, catalysts, paints, coatings. Filter paperOil filter paperOil refining, training oil, transformer oil, oil additives, oil regeneration, catalysts, paints, coatings ... mainly used for coarse filtration of beer, the beverage industry filtration syrup, gelatin, vinegar, soy sauce, oil, chemical, biochemical products, ...