Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges; German version EN 1092-1:2007— 130 стр.
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges; German version EN 1092-1:2007— 130 стр.
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories - Part 1: Steel flanges, PN designated; German version EN 1092-1:2001— 71 стр.
Heating plants for district heating - Part 1: Safety requirements for domestic substations, stations and domestic systems to be connected to hot-water district heating networks— 35 стр.