FRP tank is a kind of non-metallic composite tank made of resin and glass fiber wound by microcomputer controlled machine. It has the advantages of corrosion resistance, high strength, long service life, flexible design, strong manufacturability and so on. Due to the characteristics of FRP tanks, FRP tanks are widely used in chemical, environmental protection, food, pharmaceutical, printing and dyeing industries. The advantages of FRP tanks are greater than stainless steel tanks and carbon steel tanks