Its inner and outer walls are smooth and flat, with specifications ranging from 300mm to 3000mm. According to different usage conditions, the ring stiffness is divided into five levels, which can reach 16KN/m2 and can adapt to acidic and alkaline liquids with a concentration of less than 10%.

Advantages of Kra Tube: 1. The raw materials meet national environmental protection requirements, and the production process is pollution-free, making it a green and environmentally friendly product. 2. Hot state winding steel mold forming, high quality of pipe fusion joint. 3. Good flexibility enhances the seismic and disaster reduction capabilities of public facilities. 4. The system has complete accessories, including various supporting fittings and inspection wells, which can be assembled into a complete pipeline system. 5. Superior drainage and circulation performance, smooth inner wall of the pipe, low specific friction, fast flow velocity, and large flow rate. 6. Corrosion and aging resistance, long service life, good wear resistance and toughness of pipes, stable chemical properties, able to withstand corrosion from various acids and alkalis, ensuring a service life of over 50 years. 7. Lightweight Kra Pipe: The reinforced structure and scientific design of high-density polyethylene wrapped wall pipes, used under the same engineering conditions, weigh only a fraction of cement pipes and steel pipes, making construction more convenient and efficient. 8. The pipeline connection adopts socket electric fusion connection technology, with high quality of pipe connection and fast installation operation speed, ensuring 100% no leakage. 9. Using computers for product structure design selection and strength verification, quickly and accurately providing users with engineering solutions and selecting optimal products.