Post tensioning prestressing sheathing pipe for bridges and construction industries size 40mm to 120mm dia1. Diameter 0.25-0.28mm

Corrugated pipe is used for highway, railway, bridge engineering, slope. It is prestressed spiral bellows. As a new kind of ahole-forming component, it is not afraid of acid, alkali corrosion, good sealing performance, press, leakage. It is also easy to transport, deposit, custody. The qualifications such as product appearance, quality, structure, size, ring stiffness, partial lateral load, flexibility are all passed the national authoritative organization's examination.