1、Threading,Gauging,and Inspection of Casing,Tubing,and Line Pipe ThreadsAPI SPECIFICATION 5BSIXTEENTH EDITION,DECEMBER 2017ERRATA 1,JUNE 2018ERRATA 2,NOVEMBER 2018ADDENDUM 1,DECEMBER 2018(API MONOGRAM PROGRAM EFFECTIVE DATE:JULY 1,2019)ADDENDUM 2,NOVEMBER 2019(API MONOGRAM PROGRAM EFFECTIVE DATE:MAY
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