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ENCLOSED COOLING TOWER  Patented new filtering elements.R.O.C. Patent No. 126914 Patented new sprinkling device on cooling tower.R.O.C. Patent No. 150710 Patented new cooling system on cooling tower.R.O.C. Patent No. 145835 Patented new cooling system on cooling tower.China Patent No. ZL 982 052642
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