Plastics piping systems. Joints for glass-reinforced thermosetting plastics (GRP) pipes and fittings. Test methods for leaktightness and resistance to damage of flexible and reduced-articulation joints— 12 стр.
Plastics piping systems. Joints for glass-reinforced thermosetting plastics (GRP) pipes and fittings. Test methods for leaktightness and resistance to damage of non-thrust resistant flexible joints with elastomeric sealing elements— 14 стр.
