CLAYSTONE, MUDSTONE, ARGILLITE (CERAMICS)
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BTREFRACTORY PRODUCTS (CERAMICS)
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UDC666.762.225
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Descriptor GERTONSTEIN (KERAMIK)
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Descriptor ENGCLAYSTONE, MUDSTONE, ARGILLITE (CERAMICS)
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Descriptor FREPIERRE D'ARGILE (CÉRAMIQUE)
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Variant ENGMUDSTONE (CERAMICS)
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Variant ENGARGILITE (CERAMICS)
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Variant FREARGILE/PIERRE D'ARGILE (CÉRAMIQUE)