www.hirschmann.com 1 Profibus and Ethernet in Aluminium Production. ALUNORTE in Brazil manufactures with Profibus and Ethernet. Chemicals One of the world’s largest plants for alumina production is located in Brazil. Situated near Belém, the capital of the state of Pará, it processes bauxite from mines in the Amazon delta to produce alumina, a raw material required for aluminium smelters. Alunorte ships the annual production of 4.4 mi

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