SYNTHETIC CORUNDUMS (STONE INDUSTRY)
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BTVERY HARD MATERIALS
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BTSYNTHETIC PRECIOUS GEMS (STONE INDUSTRY)
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UDC679.822
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Descriptor GERSYNTHETISCHE KORUNDE (STEININDUSTRIE)
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Descriptor ENGSYNTHETIC CORUNDUMS (STONE INDUSTRY)
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Descriptor FRECORINDONS SYNTHÉTIQUES (INDUSTRIE DE LA PIERRE)
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Variant GERKORUNDE/SYNTHETISCHE KORUNDE (STEININDUSTRIE)
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Variant ENGCORUNDUMS/SYNTHETIC CORUNDUMS (STONE INDUSTRY)
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Variant FRESYNTHÉTIQUE/CORINDON SYNTHÉTIQUE (INDUSTRIE DE LA PIERRE)