What are the substantial uses of steel lined plastic tanks? The essence of steel lined plastic tank is to weld steel mesh (tortoise shell) on the surface of steel body, using polyethylene as raw material, adopting rotational plastic technology (rotational plastic technology) to form on the surface of steel body in one time. It has strong corrosion resistance, hard strength, long service life and flexible design. Steel lined plastic storage tank is widely used in various fields because of its high-quality characteristics. It gradually becomes a substitute of FRP and rubber, occupying most of the market areas.