API SPEC 5CT-2018 Casing and Tubing
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Specification for Casing and Tubing API SPECIFICATION 5CT NINTH EDITION-2012
Casing ea oli ea Api5ct e sebelisoa haholo ho tsamaisa oli, khase ea tlhaho, khase, metsi le lino tse ling le likhase, e ka aroloa ka phala ea tšepe e se nang seam le phala ea tšepe e cheselitsoeng. Welded tšepe phala haholo-holo e bua ka longitudinal welded tšepe phala
