Teev cov khoom siv ntawm ob qib khoom (PSL1 thiab PSL2 thiab welded steel yeeb nkab rau kev siv cov raj xa dej rau hauv kev thauj mus los ntawm roj av thiab nkev. For material use in a Sour service application refer to Annex H and for offshore service application refer to Annex J of API5L 45th.
