ANSI/API SPEC 7-1:2006-Specification for Rotary Drill Stem Elements

اختصاصی از فایل هلپ ANSI/API SPEC 7-1:2006-Specification for Rotary Drill Stem Elements دانلود با لینک مستقیم و پر سرعت .

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ANSI/API SPEC 7-1:2006-Specification for Rotary Drill Stem Elements

ISO 10424-1:2004, (Identical) Petroleum and Natural Gas Industries—Rotary Drilling Equipment—Part 1: Rotary Drill Stem Elements
Contains API Monogram Annex as Part of US National Adoption