I-API Spec 5ct-2018 i-Casing and Tubing
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Ukucaciswa kokufaka kanye ne-tubing api ukucaciswa kwe-5ct Nith Edition-2012
I-API5CT I-OIL COSE isetshenziselwa ukuthutha uwoyela, igesi yemvelo, igesi, amanzi kanye nezinye iziphuzo namagesi, ingahlukaniswa ngepayipi lensimbi engenamthungo kanye nepayipi lensimbi elinomthungo. Ipayipi lensimbi elinenkani libhekisela kwipayipi lensimbi ende endeitudinal
