Нейлон с покрытием фланце

1. They are used for connecting pipes of all specifications which have the same materials and the same SDR system. 2. They are used for connecting two pipes which have the same kind and same level of material, but which have different grades (different densities, different melt flow indexes, and different colors). 3. They possess reliable connectivity, high interface strength, good airtight performance, and stable welding performance. 4. The hidden spiral heating wires buried inside can effectively resist oxidation and rust corrosion, ensuring stable welding performance. 5. It is not easily affected by changes in environmental temperature or human factors. 6. It is easily welded and operated, and conveniently used. 7. The cost of equipment investment and maintenance is low.