The new product of double base nano white card independently developed by Hilong is a material with high viscosity reduction, strong decontamination and neutral non-corrosion characteristics. Using the high-end advanced tank cleaning equipment PRO-LINE HYDRALINK, developed and designed the oil tank integrated visual cleaning equipment. Widely used in crude oil storage tanks, refined oil storage tanks, chemical tanks, oil field buffer tanks, separators and other types of containers detection, maintenance, cleaning before removal.