The company mainly produces mainly produces corrugated steel culvert pipe, metal bellows, corrugated plastic pipe, bridge with corrugated plastic pipe, prestressed concrete hollow floor with bellows, with holes for prestressed bellows, anchor bolts with prestressed corrugated pipe, corrugated metal pipe bridges, prestressed bellows, metal bellows prestressed prestressed plastic bellows, expansion joints, bridge and other bridges rubber bearing rubber products, this product is mainly used in bridge construction. Prestressed corrugated plastic pipe made of high density polyethylene (HDPE) as raw materials to advanced production technology from production. It is far superior to metal corrosion resistance, not afraid of acid, alkali corrosion, which itself does not corrode, can effectively protect tendons from corrosion. Many of prestressed structures suffer serious effects outside, de-icing salt or brine. Prestressed corrugated plastic pipe can provide a far superior barrier protection metal bellows for tendons, to prevent contamination of harmful substances through the pipeline, thus ensuring the post-tensioned structure has better durability.