Pg. 1 www.cdeglobal.com The raw material being processed by Kieswerk Kohler at the site contains a large proportion of material smaller than 250 microns. With the crushing and screening processes previously employed on the material, the sand was out of specification for use in concrete. “This was causing a problem as local concrete manufacturers are my main customers” explains owner, Thomas Kohler. “I had been working to develop a system

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