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API Spec 20A:2017

Действует
Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry, Second Edition, Includes Addendum 1 (2018) and Addendum 2 (2020) — 40 стр.
Addendum to Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry, 2nd Edition. — 2 стр.
Addendum to Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry, Second Edition — 1 стр.