| 摘要 |
A method of refurbishing a gas pipe 10, and particularly a method of refurbishing a gas pipe network 34 in a multiple occupancy building. The method comprises causing a flow of air through the pipe 10 and injecting a settable material into the air flow such that as the material is caused to flow along the pipe 10 the material sets on the inside walls of the pipe 10 to provide an internal lining 32 thereto. |
