Shanghai Yaxin Biotechnology Co., Ltd., established in 2008, is a dedicated manufacturer of recombinant proteins expressed in E. Coli system.YaxinBio offers the best quality products at competitive prices to customers worldwide. Both YaxinBio recombinant trypsin and recombinant carboxypeptidase B, with highest selectivity and specific activity, have been successfully used in the production process of recombinant insulin by several companies. YaxinBio insists on "scientific and technological in...