Unit on a metal sledge for repair of leaking waste water drain junctions by means of epoxy resin comprises an inflatable blister element and a heatable shield which form a closed space for epoxy resin

摘要

The unit on a metal sledge for repair of leaking waste water drain junctions by means of epoxy resin comprises an inflatable blister element and a shaped heatable shield which jointly form a closed space for epoxy resin around a drain junction.