every kind of Chitosans in powder, flake and crab shell appearance, DAC from 85-98,more than 20 years experience in Chitosan With more than 20 years experience in Chitosan production, we supply every kind of Chitosan in powder, flake and crab shell appearance, DAC from 85-98, for use of pharmaceuticals, supplements, food, cosmetic, herb extraction, tobacco, water treatment, Water/air Purification ...