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STN is a protected designation of Slovak national technical standards.
Piping. T- and Y-fittings. Technical delivery code
Standard published on 1.9.1973
Selected format:Steel threaded pipe fittings
Standard published on 1.7.2002
Selected format:Piping. Weld-on pipe sockets. Technical delivery rules
Standard published on 1.3.1968
Selected format:Piping. Weld-on pipe sockets. Technical delivery rules
Change published on 1.7.1974
Selected format:Piping. Weld-on pipe sockets, PN 40 to PN 250
Standard published on 1.9.1988
Selected format:Piping. Reducers. Technical delivery rules
Standard published on 1.7.1975
Selected format:Piping. Reducers, I.D. 20 to 350, NP 40 to 100
Standard published on 1.3.1975
Selected format:Piping. Welded reducers, I.D. 400 to 2000, NP 2.5 to 64
Standard published on 1.3.1975
Selected format:Piping. Pipe bends, smooth and folded. Technical delivery rules
WITHDRAWN published on 1.9.1973
Selected format:Piping. Welded pipe bends. Technical delivery rules
WITHDRAWN published on 1.4.1962
Selected format:Latest update: 2026-11-04 (Number of items: 2 209 068)
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