Plastic tanks with pure polyethylene (LLDPE LLDPE, high density polyethylene HDPE) as raw material, the use of special rotational molding process as a whole. With no welding, no leakage, non-toxic, light weight, anti-aging, shock, corrosion resistance, long life and other advantages. One piece integrity, corrosion resistance, long life advantages particularly prominent. The vast majority of energy storage and reaction inorganic acids, alkalis, salt solutions and most organic solvents, can partially replace stainless steel titanium, nickel, high alloy steel and other materials, products, storage and transportation of dangerous goods in line with regulations, is to store chemical corrosion reaction solution, Ideal cleansing solution storage container. This product complies with national health standards, alternative food-grade stainless steel container shipping solution.