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2 MAT RIAS-PRIMAS

01/05/01. 2 MATRIAS-PRIMAS. 2. Classificao. Naturais: obtidos atravs de operaes fsicasArgila, feldspato...Sintticas: obtidos atravs de processos qumicos, a partir deMatrias-primas naturais (magnesita, calcita...)Outras matrias-primas sintticas (alumina, zircnia...). [Ring, 1996:27]

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2 MAT RIAS-PRIMAS

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    1. 2 MATRIAS-PRIMAS 2.1 Classificao

    2. 01/05/01 2 MATRIAS-PRIMAS 2 Classificao Naturais: obtidos atravs de operaes fsicas Argila, feldspato... Sintticas: obtidos atravs de processos qumicos, a partir de Matrias-primas naturais (magnesita, calcita...) Outras matrias-primas sintticas (alumina, zircnia...)

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