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primary industry, secondary industry, tertiary industry
Primary Industry
The primary industry is an economic sector that involves the production and extraction of natural resources. It is an essential activity in the economy of any country, as it is the basis of economic wealth and the main source of raw materials, products and services. The primary i......
18/06/2023 
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Chloride Metallurgy (Volume Name: Mining and Metallurgy)
Metallurgy is the process of treating metals to modify their physical and chemical properties for use in a wide range of applications. Chlorination is one of the metallurgical processes that can be used to modify the physical and chemical properties of metals. Chlorination involves adding chlorine......
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