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API 5L PSL1 PSL2 Gr.B X42 X52 X60 Khadka Dhuumaha Biraha Aan Xijanayn
Heerka: API SPEC 5L, ISO3183, GB/T9711 Fasalka B X42 X52 X56 X60 X65 By PSL1 PSL2;Codsiga: Waxaa loo isticmaalaa gudbinta gaaska, biyaha, iyo batroolka ee saliidda iyo warshadaha gaaska dabiiciga ah.
