Slip-lining method: (from top to bottom) 1. Setting up a temporary shaft; 2. cutting part of the old pipeline for cleaning and inspection; 3. pushing a fibreglass plastic liner into the original pipe section by section; 4. filling the gap between the new and the old pipelines with cement slurry to form a new pipe.

Slip-lining method: (from top to bottom) 1. Setting up a temporary shaft; 2. cutting part of the old pipeline for cleaning and inspection; 3. pushing a fibreglass plastic liner into the original pipe section by section; 4. filling the gap between the new and the old pipelines with cement slurry to form a new pipe.

Slip-lining method: (from top to bottom) 1. Setting up a temporary shaft; 2. cutting part of the old pipeline for cleaning and inspection; 3. pushing a fibreglass plastic liner into the original pipe section by section; 4. filling the gap between the new and the old pipelines with cement slurry to form a new pipe.