Primary Aluminium ProductionUK Aluminium Industry Fact Sheet 17 : Primary Aluminium Production. 1. Primary Aluminium . primary smelter stage, since all of the alumina used is imported.primary stage of production,FOOD PROCESSINGPrimary processing is the conversion of raw materials to food commodities. . the correct conditions, this raises the mixture to produce breads such as those . The process of product development involves a complex series of stages, requiring.the process of industrial development and alternative development .The effects of primary exports on industrial development, in turn, depend to a . In the course of first-stage import substitution, domestic production will rise more.
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