PIPEWAY

Flexible pipes, including flexible tubes for lining passageways being extruded in sheet form and helically seamed into tube form and having spikes, protrusions or spaced formations on one surface; extruded plastics and polymer material in sheet form; plastics or polymer sheet material having spikes or protrusions on one surface thereof

Installation of flexible linings for rehabilitation, rejuvenation, repair and lining of pipelines, sewers and passageways