1. Anti-corrosion coat
High-density polyethylene anticorrosive coat structure: high-density polyethylene is wrapped on the outer surface of the steel pipe to form a high-density polyethylene anticorrosive coat structure, which has very high mechanical strength and excellent corrosion resistance, while the manufacturing of the outer pipe increases the antioxidant, ultraviolet stabilizer and carbon black.
2. Process corrosion
The oxygen powder used in the anti-corrosion process, with the successful development of special phosphating solution for epoxy powder impregnation, has overcome the problem of poor adhesion of epoxy powder impregnation process, and the emerging process of epoxy powder impregnation has emerged.
