Advantages of elliptical spiral duct

1. Fully automated mechanical factory production, products are clean and dust-free;
2. The lock seam is tight, and the lock gap inside the pipe is smooth and leak free; Locks have a reinforcing effect;
3. The cross-section has a small wet circumference, and the air duct leakage rate is extremely low, only 0.02%;
4. It has a relatively long continuous length (usually 4-8M), good consistency in duct size, and easy installation;
5. High structural strength, good rigidity, and avoidance of secondary noise generation;
6. Ventilation ducts that occupy a small space height and are suitable for building spaces with insufficient floor height.