Steel-plastic lined storage tanks offer advantages such as seamless construction, non-leakage, non-toxicity, resistance to aging and impact, corrosion resistance, long lifespan, and compliance with hygiene standards. They address the shortcomings of fully plastic rotational molding tanks, such as poor rigidity, pressure resistance, and temperature resistance. The interior lining of the product is flat, smooth, and strong. Compared to traditional steel-lined plastic board tanks, rubber-lined steel tanks, and glass-fiber reinforced plastic storage tanks, they have superior corrosion resistance, non-leakage, non-delamination, wear resistance, pressure resistance, high-temperature resistance, and longer lifespan. Their price is lower than that of similar traditional storage tanks, making them an ideal container for storing corrosive liquids. Therefore, they are an excellent corrosion-resistant storage tank. The overall plastic lining is formed in one piece, ensuring seamless construction, durability, hygiene, resistance to various acids and alkalis, and resistance to any concentration of hydrochloric acid, phosphoric acid, etc. Benefits include a long lifespan, good insulation, and the reaction medium not coming into contact with metal ions.