API SPEC 6A Specification for Wellhead and Christmas Tree Equipment - Twentieth Edition; Incorporating ERRATA 1: JANUARY 2011, ERRATA 2: NOVEMBER 2011, ADDENDUM 1: NOVEMBER 2011, ADDENDUM 2: November 2012, ADDENDUM 3: MARCH 2013; ISO 10423:2009 Adoption
Другие Стандарты API





