Award of Public Works , Sewer tolerance concrete hyumgwan

摘要

PURPOSE: A connector of a concrete hume pipe is provided to prevent the leakage of water by perfectly integrating the concrete hume pipe with the connector. CONSTITUTION: Connectors are connected to the edge of a concrete hume pipe(22), and are composed of a connecting unit(23), and an inner pipe(28). An input groove(24) is formed at one side of the connecting unit. A filling groove(25) is formed at the inner pipe.