Ductile iron fittings for gas and water pipelines - MI-fittings - Socketed spigots with plane end branch; application, dimensions and masses (weights)— 3 стр.
Ductile iron castings for gas and water pressure pipelines; EN-fittings; socket <(hoch)1>/<(Index)4> duckfoot bends; application, dimensions and masses— 2 стр.
Corrosion of metals; probability of corrosion of metallic materials when subject to corrosion from the outside; buried and underwater pipelines and structural components— 12 стр.