Top, founded in 2002, is a professional manufacturer and supplier of environmental protection and RAS equipment. Our products include micro-nano technology equipment, volute screw sludge dewatering machine, DAF and so on.The products have been sold to more than 40 countries, widely used in municipal and industrial sewage, such as textile and dyeing, tannery, paper&pulp, food processing, slaughterhouse, animal husbandry, pharmaceutical, pastic recovery, petrochemical, etc.