Chikwama ndi Machubu a API SPEC 5CT-2018
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Kufotokozera kwa API 5CT NINTH EDITION-2012 kwa Casing ndi Tubing
Chidebe cha mafuta cha Api5ct chimagwiritsidwa ntchito makamaka kunyamula mafuta, gasi wachilengedwe, gasi, madzi ndi zakumwa ndi mpweya wina, ndipo chimagawika m'zigawo ziwiri: chitoliro chachitsulo chosasunthika ndi chitoliro chachitsulo chosungunuka. Chitoliro chachitsulo chosungunuka chimatanthauza chitoliro chachitsulo chosungunuka cha longitudinal.
