Gaskets for gas supply - Part 6: Gasket materials based on synthetic fibres, graphite or polytetrafluoroethylen (PTFE) for gas valves, gas appliances and gas mains— 6 стр.
Cold-rolled narrow steel strip for heat-treatment - Technical delivery conditions - Part 4: Spring steels and other applications; German version EN 10132-4:2000 + AC:2002— 9 стр.