1. Telecom, power and broadcast network expansion and renovation.
2. Agricultural irrigation.
3. Ventilation.
4. Sewage systems.
· Light weight:
The walls become thinner because of the spiral technique, then, makes transport and nstallation more easier.
· Higher ring stiffness:
Use spiral structure to get higher ring stiffness, so that it can bear load effectively and not easy to deform.
· Terrain adaptability: Excellent tensile strength and fracture resistance.
· Good corrosion resistance.
· Good insulation performance: Effectively avoid the phenomenons of eddy current while transforming the electricity.
· Good heat dissipation: The wires in the ducts are suspended in midair, so that heat disperses evenly.
· Simple connection: Use spiral connection, and no need to use auxiliary equipments.
· High efficiency to wiring: The contact area of wires and duct is much less as the duct's structure is spiral, makes drawing easier.
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