This product is a kind of natural chitin extraction. mainly applied in medical treatment drugs. It has important physiological functions to human body, It can promote the body's synthesis of mucopolysaccharide and is conducive to the articular cartilage's metabolism and repair, with significant anti-inflammatory analgesic effect. It can be the nutritional supplement for diabetic patients, and it has good effect on the treatment of peptic ulcer disease and rheumatoid arthritis. It is also the main raw material of antibiotics synthesis and anti-cancer drugs. Besides, it can be used in food, feeds, cosmetics, and so on.