API Speciﬁcation 6A, Eighteenth Edition, May 2002 ISO 10423:2001, MOD, Petroleum and natural gas industries—Drilling and production equipment—Wellhead and christmas tree equipment
EFFECTIVE DATE: NOVEMBER 1, 2002
COPYRIGHT American Petroleum Institute Licensed by Information Handling Services
COPYRIGHT American Petroleum InstituteLicensed by Information Handling Services
API Specification 6A / ISO 10423:2001(E)
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