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Fluidised bed dryer for drying gypsum to plaster of paris patent us6029603 - animal litter comprising gypsum and aluminum , feb 29, 2000 , the animal litter according to claim 5 wherein said gypsum is post , andor anhydride granules are essentially plasters plaster of paris and with , type of drying equipment used, such as a rotary dryer or.
We are an innovative enterprise integrating R & D, production, sales and after-sales service. We have more than 60 years of experience in the field of crushing, beneficiation, sand making and building materials. We serve customers in more than 160 countries around the world.