ISO 7259:1988

Действует

Predominantly key-operated cast iron gate valves for underground use — 12 стр.

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BS ISO 6162-2:2018

Действует

Hydraulic fluid power. Flange connections with split or one-piece flange clamps and metric or inch screws. Flange connectors, ports and mounting surfaces for use at a pressure of 42 MPa (420 bar), DN 13 to DN 76 — 30 стр.