Zhong Sheng Dong Tai (Nan Ning) Nano Gene Biotechnology Co. Ltd., founded in Feb 2007, is a professional and large-scale company and purification snake venom products. We produce enzyme and active which lead the market in technical content and unique products. These products are wildly used in the biochemistry tool enzyme preparation, protein structure and function research, cell membrane and ion channel research, cancer, neural and cardiovascular disease treatment.