Which materials are commonly used in stainless steel heat preservation tank?

Stainless steel heat preservation tank is widely used in dairy industry, food, pharmaceutical, chemical industry, beverage and other industries, commonly used in the production and use of heating, heat preservation, storage materials. Stainless steel heat preservation tank is made by adding heat preservation layer on the outer layer of stainless steel tank. The selection and quality of heat preservation materials directly affect the heat preservation effect of stainless steel tank. At present, the commonly used heat preservation materials of stainless