Polyvinyl Chloride (PVC) chemical storage tanks should be avoided in high-corrosive environments.,Regular inspections of the steel body's anti-corrosion condition and proper anti-corrosion measures are essential. The surface treatment methods for carbon fiber, among others, include oxidation treatment, surface coating, plasma treatment, and supercritical fluid treatment. A summary of the changes in mechanical properties of carbon fiber reinforced polymer composites after these treatments has been compiled. According to the characteristics of steel-lined plastic storage tanks, high working temperatures can be90Temperatures below ℃ are determined by the design steel plate thickness under high working pressure. The working temperature and pressure are indicated on the drawings. In unavoidable high-corrosive environments, the steel surface should be coated with epoxy resin and regular anti-corrosion maintenance should be performed.