Hengyang Desen Biotechnology Co., Ltd. is a leading Chinese chemical supplier specialized in Hormone Steroids, Veterinary Medicine, Natural ingredients and Pharmaceutical intermediate. Our company integrates R&D, producing, operating and marketing into an organic whole. We have authority of export and import, and have experience of export for 14 years. Certification: Our company is certified with quality management system such as HACCP/ISO/Kosher certification, and equiped with UV/HPLC/GC/AA and other morden analyzing instruments to assure high quality.And we pass the FDA certificate, The FDA NO. is : 1391241966. Factory: Desen' factory covers an area of 45000 square metre, and the production workshop is designed according to GMP stantard. It is a standardized, large size phytochemis..