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Qo’shtavr (qo’shtavrli balka): Parallel gardish qirralari № 10B1, St3sp/ps5, St3Gsp/ps, boshqa karbonli po'lat S235-S285 bilan I-nur — MXIK (IKPU) kodi 07216001004000127 · Tasnif by Krafta