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GOST R 58466-2025
Copper-iron-vanadium salable raw ores. Specifications
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GOST 11970.4-70
Nominal thickness of complex glass threads and single yarn made of glass fibres
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GOST R ISO 3741-2013
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Precision methods for reverberation test rooms
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€10