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Head: Божко Валерій Андрійович. Elaboration of design Ukrainian Standart. Steel flights of steps, stair landings and railings. Specifications (for substitution of Gost Standart. 23120-78). Ukrainian Research and Design Institute of the Steel Structures UKRNDIPROEKTSTALCONSTRUCTSIYA, JSC. № 0108U003974
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Updated: 2025-12-08