Sludge Oil can be used to replace Solar fuel, which used for burner or steam in ceramic industries, iron melted, shoes industries, etc. Average Heat Calorie 10, 000 kkal/ kg, easy to use, environment friendly, and saving operational cost until 40% . This is a legal product and customer don' t need to expense extra money to buy some equipment for use that energy conversions, because we will borrow the equipment, maintenance regularly, repair any damage and training your staff.