No fouling: inside layer is formed by special silicon-compound materials coated after melting at 900C No corrosion No leakage: layer can strongly be of anti corrosion, and the tank will be no leakage for ever No shrinking: super height of tank wall can bear strong pressure without being shrunken by air pressure Healthy water: water in the tank is sanitary, hygienic and healthyThickness : 2.00mm
