We Qingdao BZ Oligo Co., Ltd mainly offer biological products of Marine Oligosaccharides, containing more than 100 kinds of products of Marine Oligosaccharide standards, Oligosaccharide hydrolase, alginate oligosaccharides and chitosan oligosaccharides from four series: alginate, carrageenan, agar and chitosan. These products are widely used in the field of health food, dairy products, feed and ordinary food, etc.