... vegetable oils, acidification of oil, oil trench, waste oil, used lube oil. And all over the use of oil refineries, chemical plants, ... rule!. Introduction of raw material:Sources of raw materials (all types of auto repair shop, a variety of large ... replacement of waste oil, all kinds of waste animals and vegetable oil, acid oil, heavy oil, lubricating , Alcohol, sulfonated oil, naphtha, paraffin, ...