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Po’lat quvur (o’ralgan po’lat): 13, Neft va gaz sanoati uchun spiral-chokli payvandlangan po’lat quvurlar API spes 5l 630x50 X52 PSL-1 SAWH — MXIK (IKPU) kodi 07306001005013821 · Tasnif by Krafta