Xi'an Tonking Biotech Co.,ltd,located in the R&D Park,Xi'an,Shaanxi.Our factory in Baoji,Shaanxi.We are a professional manufacturer of botanical extracts,Chinese herbal medicine raw materials,herbal liquid extract,Dehydrated vegetables,Juice powder. We own a team which dedicated to the R&D,production and marketing of botanical extract since 2008.We have advanced equipment and facilities which are used for the production of botanical extracts. In the past years, we researched and developed ...