Jiangsu Huaian plastic corrugated pipe price phone 15933187015 wholesale

内径：

50mm

Common name of prestressed plastic corrugated pipes: bridges, prestressed corrugated pipes, prestressed plastic spiral pipes, corrugated pipes for concrete, prestressed cast-in-place plastic corrugated pipes, bridges, plastic corrugated pipes, steel strands, corrugated pipes, corrugated pipes, as hole-forming materials for prestressed post-tensioning methods. It is an important component of the stress system. For a long time, prestressed projects have used metal bellows as pore-forming materials. In order to overcome the shortcomings of poor sealing, easy damage, corrosion and high friction of metal bellows, it also provides an additional layer of anti-corrosion for the prestressed tendons. For barriers, plastic corrugated pipes made of polyethylene or polypropylene are recommended as a revolutionary product of bonded post-tensioning to provide the longevity of the structure.
Technical requirements comply with transportation industry standards/plastic corrugated pipe raw materials should use original granular raw materials. The use of powdered and reconstituted granular raw materials is strictly prohibited. High-density polyethylene shall meet the requirements of /, and polypropylene shall meet the requirements of /.