Weifang Dongxing Chitosan Factory was established in 2003 . Through the hard work for these years that our company has become one of the strongest manufacturers in chitosan line .we specialize in producing chitin , chitosan , chitosan oligosaccharide , water soluble chitosan, and high desity chitosan . all the products be exported to Europe and America , Southeast of Asia , Africa , and the Middle East international markets . For these years, we have enjoied a widespread and high praise in this ...