A coalition of three-sided bellows, consisting of a first and second tube segments, a ready package in a slot, extended to a round asparagus portion, a three-sided tube segment, and used to bond a tube. Three lovely walls

摘要

Union of TRIPLE WALL Corrugated Pipe, which comprises a First and a second section of pipeA GASKET disposed in a Groove that extends around a circumference of the Shank portion; a Section of TRIPLE WALL Corrugated Pipe and Method for coupling Winding PipeDa triple Wall.