PIPE COUPLING FOR MANHOLE

摘要

PROBLEM TO BE SOLVED: To provide a pipe coupling for manholes having less damaged parts of the connection part of the manhole side wall and the pipe line. SOLUTION: The manhole pipe joint connects a polyolefin pipe to the manhole side wall. A part with sand applied with adhesive is formed at the outside face of one end part of a polyolefin single pipe. A joint flexibly connecting the olefin pipe is formed at the other end part. COPYRIGHT: (C)2005,JPO&NCIPI