Sealing resin e.g. epoxy resin, injection pipe for prefabricated concrete pipe, has rigid pipe with surface including outlets that are covered in such a way that concrete or mortar is not clogged or penetrate into internal space of pipe

摘要

The pipe has a rigid pipe with a connector (1), which is a winding, valve or a coupler, on one side, and tightly closed on the opposite side. The surface of the rigid pipe is provided with outlets (4) that are covered in such a way that concrete or mortar is not clogged or penetrate into the internal space of the pipe. A flowable substance introduced from outside is discharged from the rigid pipe through the outlets.