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Niobium pentoxide. Method for the determination of sulphur content
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Niobium pentoxide. Method for the determination of dioxide titanium content
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Medical apparatus and devices. Fiber lightguides. Connecting dimensions
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Titanomagnetite ores, ironvanadium concentrates, agglomerates and pellets. Methods for determination of silicon dioxide
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Titanomagnetite ores, ironvanadium concentrates, agglomerates and pellets. Methods for determination of vanadium pentoxide
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Woolen sheet waddings stitched by canvas. General specifications
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