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PPR tube service life comparison
7 Faa'iidooyinka Kacaanka ee Dhuumaha PPR ee Biyaha Casriga ah & Habka Biyo-mareenka
Warshadaha dhismaha ee caalamiga ah waxa ku socda mowjad isbeddel cagaaran ah, iyada oo Ururka Biyaha Caalamiga ah uu muujinayo ilaa 25% Nidaamyada bixinta biyaha ayaa lumay daxalka tuubooyinka. Sida…