The pre-coated steel pipe is a new type of green pipe developed by Jinzhou Pipe Joint Research Center. It is based on the high-quality hot-dip galvanized steel pipe (or black pipe) produced by our company, and coated with one or more layers of epoxy polyester paint on the surface of the steel pipe by advanced electrostatic spraying process. The product has good mechanical properties and strong corrosion resistance. The annual production capacity of more than 20,000 tons, product quality in line with GB/T 42541 "gas pipeline coated steel pipe" standard requirements, the performance indicators reach the domestic advanced level, can be widely used in urban gas pipeline transportation.

Gas special coated steel pipe is based on the company's own high quality welded steel pipe, seamless steel pipe as the substrate, on the substrate steel pipe or on the overall hot dip galvanized steel pipe on the basis of external surface treatment to produce gas coated steel pipe (also can provide internal and external coated steel pipe according to customer needs, coating thickness, quality according to the agreement of both parties). The welded pipe or galvanized steel pipe conforms to the GB/T3091 standard, the seamless steel pipe conforms to the GB/T8163 standard, and the quality of the outer coating is in accordance with the GB/T 42541 standard, which is widely used in gas transportation.

The inner and outer coated steel pipes for water supply are made of high quality straight seam high-frequency welded steel pipes, spiral seam submerged arc welded steel pipes or seamless steel pipes as the matrix. The products are made of epoxy powder and polymer materials coated on the inner and outer walls of the steel pipes by sandblasting, oil removal and rust removal, spray and suction coating process, and the product quality is in line with GB/T 28897, CJ/T 120 standards. Suitable for drinking water and industrial water supply.

The inner and outer coated steel pipe for drainage is made of high quality straight seam high-frequency welded steel pipe, spiral seam submerged arc welded steel pipe or seamless steel pipe as the matrix. It is made of epoxy powder/polyester polymer material on the inner and outer wall of the steel pipe after sand blasting, oil removal and rust removal, and advanced absorption and spraying technology. The product is in line with GB/T 28897, CJ/T 120 standards. Suitable for rainwater, sewage and other drainage fields.

The inner and outer coated steel tubes for fire protection are made of high quality straight seam high-frequency welded steel tubes, spiral seam submerged arc welded steel tubes or seamless steel tubes as the matrix. The products are made by sandblasting, oil removal and rust removal, spray and suction coating, and coated with epoxy powder polymer materials on the inner and outer walls of the steel tubes. The product quality is in line with GB/T5135.20 standard, which is suitable for fire water supply and foam medium transportation.

Fire-fighting COATED galvanized steel pipe is made OF SELF-MADE high quality hot-dip galvanized steel pipe as the matrix and coated with powder coating on the outer wall of the steel pipe by spraying process, which is suitable for fire-fighting water supply.