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2 x2 rh90 acoustic mineral ceiling board slovakia

NRC Noise Reduction Coefficient is a standard measurement for a material’s acoustical absorption ranging from 000 no absorption to 100 total absorption CAC Ceiling Attenuation Class is a standard measurement of a ceiling system’s ability to block sound between two closed spaces CAC values of 35 or greater are recommended to achieve speech privacy... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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