SYNTHETIC PRECIOUS GEMS (STONE INDUSTRY)
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BTPRECIOUS STONES AND SEMIPRECIOUS STONES (STONE INDUSTRY)
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BTSTONE TECHNOLOGY + STONE INDUSTRY
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UDC679.82
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Descriptor GERSYNTHETISCHE EDELSTEINE (STEININDUSTRIE)
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Descriptor ENGSYNTHETIC PRECIOUS GEMS (STONE INDUSTRY)
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Descriptor FREPIERRES PRÉCIEUSES SYNTHÉTIQUES (INDUSTRIE DE LA PIERRE)
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Variant GEREDELSTEINE/SYNTHETISCHE EDELSTEINE (STEININDUSTRIE)
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Variant ENGPRECIOUS GEMS/SYNTHETIC PRECIOUS GEMS (STONE INDUSTRY)
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Variant ENGGEMS/SYNTHETIC PRECIOUS GEMS (STONE INDUSTRY)
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Variant FRESYNTHÉTIQUE/PIERRES PRÉCIEUSES SYNTHÉTIQUES (INDUSTRIE DE LA PIERRE)
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NTSYNTHETIC DIAMONDS (TECHNICAL CHEMISTRY)
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NTSYNTHETIC CORUNDUMS (STONE INDUSTRY)