Xi'an Sost Biological Science & Technology Co., Ltd. relies on the geographical advantages of Mountain Qinling in the west of China. With biological engineering and natural extraction technology as the foundation, we integrate the research and development, production and sales. We have advanced extraction, separation, purification and drying equipment and quality testing equipment, such as HPLC, GC, AFS, UV, etc. We have management personnel with expertise and technical personnel to ...