Hello*


Please someone help me with the following API standard.


Specification for Wellhead and
Christmas Tree Equipment
ANSI/API SPECIFICATION 6A
TWENTIETH EDITION* OCTOBER 2010
EFFECTIVE DATE: APRIL 1* 2011
ERRATA 1* JANUARY 2011
ERRATA 2* NOVEMBER 2011
ERRATA 3* JUNE 2013
ERRATA 4* AUGUST 2013
ERRATA 5* NOVEMBER 2013
ERRATA 6* MARCH 2014
ERRATA 7* DECEMBER 2014
ERRATA 8* FEBRUARY 2016
ERRATA 9* JUNE 2016
ERRATA 10* AUGUST 2016
ADDENDUM 1* NOVEMBER 2011
ADDENDUM 2* NOVEMBER 2012
ADDENDUM 3* MARCH 2013

ADDENDUM 4* JUNE 2016
CONTAINS API MONOGRAM ANNEX AS PART OF U.S. NATIONAL
ADOPTION
ISO 10423:2009 (Modified)* Petroleum and natural gas
industriesDrilling and production equipment
Wellhead and christmas tree equipment


Thank you


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