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Inflatable Rubber Culvert Balloon

Inflatable rubber culvert balloon, in various shapes and sizes, is designed to form a cavity for bridges, roofs, stakes and various concrete structures.
Round inflatable rubber culvert balloon is common used in reinforced concrete members, bridge construction, such as stake, roof, beam and building.
Octagon inflatable rubber culvert balloon is often used in many concrete projects, such as stake, roof, beam, building and water conservancy projects.
Elliptical and trapezoidal inflatable rubber culvert balloon are used in reinforced concrete members, bridge construction, irrigation works and tunnels.