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API Std 526:2009

Заменен
Flanged Steel Pressure-relief Valves, Sixth Edition (Includes Errata 1, Errata 2) — 43 стр.
API Std 526 Errata
Заменен
Errata for Flanged Steel Pressure-relief Valves, Sixth Edition — 1 стр.
Errata 2 to Flanged Steel Pressure Relief Valves, Fifth Edition, Includes Errata (May 2009), Errata 2 (Oct 2012) — 1 стр.