API SPEC 5CT-2018 Casing and Tubing
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Kufotokozera kwa Casing and Tubing API SPECIFICATION 5CT NINTH EDITION-2012
Api5ct mafuta casing makamaka ntchito kunyamula mafuta, gasi, mpweya, madzi ndi zakumwa zina ndi mpweya, Iwo akhoza kugawidwa mu seamless zitsulo chitoliro ndi welded zitsulo chitoliro. Welded zitsulo chitoliro makamaka amatanthauza kotenga nthawi welded zitsulo chitoliro
