1978

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OST 26-02-2025-78
OST 26-02-2025-78
Main hoists of the drilling rigs. Main parameters and dimensions
OST 26-02-2026-78
OST 26-02-2026-78
Equipment for tripping operations and swivels. Main parameters and connecting dimensions
OST 26-02-2027-78
OST 26-02-2027-78
Circulation system units of drilling machines. Reservoirs. Main parameters.
OST 26-02-2029-78
OST 26-02-2029-78
electromagnetic powder brakes for the main winches rigs. Basic parameters.
OST 26-02-2030-78
OST 26-02-2030-78
Hydrodynamic transformers of drilling rigs. The main parameters
OST 26-02-2031-78
OST 26-02-2031-78
Aggregates at diesel-hydraulic rigs. The main parameters
OST 26-02-2038-78
OST 26-02-2038-78
Brand Plates for vessels and apparatuses. Design, dimensions and technical requirements
OST 26-02-2039-78
OST 26-02-2039-78
Lobes, locks and pads. Design, dimensions and general technical requirements.
OST 26-02-376-78
OST 26-02-376-78
Technological units of gas and oil industry. General technical requirements.
OST 26-02-535-78
OST 26-02-535-78
Piston oil pumps with electric drive and regulated supply
OST 26-02-536-78
OST 26-02-536-78
rectifying S-shaped valve plates for columns. Parameters, design and basic dimensions. Technical requirements.
OST 26-02-643-78
OST 26-02-643-78
Hydrocyclone sludge separators. Types and main parameters.
OST 26-02-652-78
OST 26-02-652-78
Vibrating sieves. Types and basic parameters.
OST 26-02-677-78
OST 26-02-677-78
Mixers. Types and main parameters.
OST 26-02-ED1-1077-78
OST 26-02-ED1-1077-78
Circulation swivel. Export model
OST 26-02-ED1-1272-78
OST 26-02-ED1-1272-78
Taps and bells for fishing. General technical requirements. Export amendment
OST 26-03-1064-78
OST 26-03-1064-78
Materials used in refrigeration engineering
OST 26-03-2010-78
OST 26-03-2010-78
Refrigeration equipment. Methods of vibration and noise tests.
OST 26-03-639-78
OST 26-03-639-78
Refrigeration equipment. Designing , testing and proof pressure.
OST 26-04-2149-78
OST 26-04-2149-78
Tees with equal diameters, welded, of brass. Design and dimensions

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