The PFA lined column is made by the way of compression molding with PFA material and the diameter ranges from300-1200mm. The high accuracy inner mould makes the final molded surface as bright as jade. In addtion,our special diamond mesh reinforcement technology makes the molded PFA material and the steel body integrated. The fuorine- lined layer forms a high-density plastic steel body under high molding pressure extusion, which has the characteristics of strong corrosion resistance and strong penetration resistance, and the product's operating temperature can reach 220 °C.