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Concrete bricks
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Concrete C12/15
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Concrete C12/15 (Ready-mix concrete)
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Colemanite (extraction and processing)
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Colophony (rosin)
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Coke-oven coal tar (from hard coal)
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Cobalt sulphate heptahydrate via refining of crude Co(OH)2 – open input Co(OH)2
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Cobalt sulphate heptahydrate via refining of crude Co(OH)2
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Clay production
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Citrus fruit (84% H2O content)
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