Plastics piping systems for non-pressure drainage and sewerage. Glass-reinforced thermosetting plastics (GRP) based on unsaturated polyester resin (UP), Practices for installation— 14 стр.
Plastics piping systems for water supply or drainage and sewerage. Glass-reinforced thermosetting plastics (GPR) based on unsaturated polyester resin (UP). Recommended practice for installation— 12 стр.
