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Po’lat quvur (o’ralgan po’lat): 14, Neft va gaz sanoati uchun spiral-chokli payvandlangan po’lat quvurlar GOST Iso 3183 1220X12. 0 x42 PSL-1 SAWH — MXIK (IKPU) kodi 07306001005014499 · Tasnif by Krafta