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Gas-fired air heaters with forced convection for firing (heating) rooms not exceeding a net heat input of 100 kW. General technical requirements and test methods
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Unified system of corrosion and ageing protection. Varnish-and-paint coatings. Laboratory test methods for mold resistance
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System of standards on information, librarianship and publishing. Informative abstract and indicative abstract. General requirements
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State system for ensuring the uniformity of measurements. Pressure gauges, vacuum pressure gauges, vacuum manometers, draught gauges, delivery head meters and draught head gauges with unified electric (current) output signals. Methods and means of verification
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Adjustable mandrels with external morse taper and straight shank for drill chucks. Dimensions
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