The steel sealed container used to store liquid or gas is the steel storage tank. The steel storage tank project is an indispensable and important infrastructure for petroleum, chemical, grain and oil, food, fire protection, transportation, metallurgy, national defense and other industries. , Our economic life is always inseparable from large and small steel storage tanks. The important role of steel storage tanks in the development of the national economy is irreplaceable. With the continuous development of the current storage tank industry, more and more industries and companies have used storage tanks, and more and more companies have entered the storage tank industry. Steel storage tanks store various liquid (or gas) raw materials and For many enterprises, special equipment for finished products cannot be produced normally without storage tanks. In particular, storage tanks of various capacities and types are indispensable for national strategic material reserves. Most of the oil storage facilities in our country are mainly above-ground storage tanks, and most of them are metal structures.