Corrugated Duct

The corrugated duct is used as a duct former for a variety of precast and cast-in-site concrete work. The ducts are clean in appearance, and free of rust on the inner and outer surfaces. The corrugated metal ducts have a neat bite, tight indentation, and uniform thickness. The quality can reach the standard of the Ministry of Transport. It is available from 35mm to 135mm and is also customizable according to the length and diameter needed. It has been widely used in highways, bridges, railway bridges, construction water conservancy, electric power, etc.

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