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Our silica sand and milling plant in Weferlingen is indigenous to two German states. Prior to German reunification one part was in Lower Saxony, i.e. in the West, while the other part was on the territory of the former German Democratic Republic. High-grade silica sands have been mined and refined there since 1925. Created there after the refining process are a total of 20 different products that have proven themselves in various industries.