mining of sand and gravel resources for the construction industry

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Photo credit: © Elmar Gubisch / Alamy / Afripics
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Keywords: area, association, branch, buildings, business, city, civil, companies, construction, countries, country, culture, dig, engineering, enterprise, enterprises, extraction, geotechnics, gravel, group, industrial, industrialist, industrialists, industry, location, material, materials, miners, mining, nation, plants, production, raw, representatives, resource, resources, sand, sector, society, stocks, tons, union, workers