API Spec 7-1:2006 (R2021) RUS

Заменен

Specification for Rotary Drill Stem Elements, First Edition -- Identical to ISO 10424-1:2004, Includes Addendum 1 (2007), Addendum 2 (2009), Addendum 3 (2011), Addendum 4 (2019), and Errata 1 (2020) — 87 стр.

Описание Изменения Ссылки Версии

API Spec 7-1 (R2015) Addendum 4:2019 RUS

Заменен

Addendum to Specification for Rotary Drill Stem Elements, First Edition -- Identical to ISO 10424-1:2004 — 4 стр.