Steel-lined plastic storage tanks offer advantages such as seamless construction, no leakage, non-toxicity, resistance to aging and impact, corrosion resistance, long service life, and compliance with hygiene standards. They address the shortcomings of all-plastic rotational molding tanks, such as poor rigidity and strength, poor pressure resistance, and temperature sensitivity. The inner lining of the product is flat, smooth, and strong. Compared to traditional steel-lined plastic plate tanks, rubber-lined storage tanks, and glass-fiber reinforced plastic storage tanks, they have superior corrosion resistance, no leakage, non-delamination, wear resistance, pressure resistance, high-temperature resistance, and longer service life. Their price is lower than that of traditional tanks of the same specification, making them an ideal container for storing corrosive liquids. Therefore, they are an excellent corrosion-resistant storage tank. The overall rotational lining is formed in one piece, ensuring seamless, durable, hygienic, and clean construction, resistant to various acids and alkalis, and any concentration of hydrochloric acid, phosphoric acid, etc. Benefits include a long service life, good insulation, and the reaction medium does not come into contact with metal ions.