Russian standards PDF
Rare-earth metals and their oxides. General requirements for methods of analysis
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Rare-earth metals and their oxides. Method of determination of chlorine
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Rare-earth metals and their oxides. Spectral method of determination of vanadium, iron, cobalt, silicon, manganese, copper, nickel, lead, titanium, chromium
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Magnetic circuits, tape orthogonal for multifunctional electromagnetic transformers
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