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O’tga chidamli shamotli mahsulotlar: Olovga chidamli beton kremniy mahsulotlari BDK № 1, 2, 6, 7, 8, 11, 20, 24-1, 24-2, 31, 37 — MXIK (IKPU) kodi 06902001020000013 · Tasnif by Krafta