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Coal tar pitch. Method for the determination of volatile matter
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Oxygen systems converters of aircrafts and helicopters. Terms and definitions
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Centrifugal moulds with threaded shank and centrifugal locks. Construction and dimensions
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Civil defense. Civil defense constructions. Quickly erectable structures of block-modular type of full factory readiness. General requirements
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Thermo-mechanically hardened rolled stock for special purposes class Ac600C for reinforcing concrete constructions. Specifications
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