The prestressed corrugatedbellow is mainly used in post-tensioned prestressed concrete structure system, which is the main product of prestressed tendons to form channels in prestressed beams and slabs. It is divided into two systems: metal bellows and plastic bellows. There are two types of round tubes and flat tubes according to the shape. Each type of corrugatedbellow has a variety of specifications, which can meet the matching requirements of prestressed bars of different specifications such as reinforcing bars, steelPCstrands, and steel wires. Prestressed corrugatedbellows are widely used in prestressed corrugated pipe system products required for large-scale construction projects such as highways, railways, bridges, high-rise buildings, water conservancy, electric power, and other structures of various grades.
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