Lining can be divided into loose lining and tight lining. The process is as follows: loose lining: cylinder cleaning → plate selection → welding → lining → flanging → check tight lining: cylinder cleaning → water heating adhesive curing → plate selection → plate activation treatment → Welding → Cylinder adhesive lining → Flanging → Inspection. The steel-lined PTFE pipeline lining also has good alkali resistance and acid resistance, so it has a wide range of applications, suitable for many places, and has excellent negative force and long service life. The steel-lined PTFE pipeline lining is very corrosion resistant. For most chemicals and solvents, steel-lined PTFE pipe linings can be used. It can be used through strong alkali and acid resistance, water and various organic solutions. It can be used in any climate without blocking any material.