API spec 5ct-2018 Casing Thiab Tubing
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Cov lus qhia tshwj xeeb rau casing thiab tubing API specification 5CThaj Thib-60
API5CT roj casing feem ntau yog siv los thauj cov roj, roj, dej thiab lwm yam dej thiab roj av, nws tuaj yeem faib ua seamless steel yeeb nkab thiab welded steel yeeb nkab. Welded Steel Yeeb Nkab tsuas yog hais txog Longitudinal Welded Steel Yeeb Nkab