1. 1. (2015) GOST 33258-2015: Pipeline valves. Surfacing and quality control of surfaced surfaces. Technical requirements [in Russian].
2. 2. (1979) Surfacing materials of countries-members of CMEA: Catalogue. Ed. by I.I. Frumin. Kiev-Moscow, Int. Center of Sci. and Techn. Information [in Russian].
3. 3. Gladky, P.V., Pereplyotchikov, E.F. (1997) Properties of cobalt-chrome-tungsten surfacing alloys doped with boron and nickel. Avtomatich. Svarka, 7, 14-28 (in Russian].
4. 4. (1989) GOST 9.912-89: United system of corrosion and ageing protection. Corrosion resistant steels and alloys. Methods of accelerated tests for resistance to pitting corrosion [in Russian].
5. 5. (2013) GOST 31901-2013: Pipeline valves for nuclear stations. General specifications [in Russian].