Shaanxi Pure Source Bio-Tech Co.,Ltd is a modern high-tech biological enterprise engaging in R & D, production and sales of novel herbs and plant extract. Located in High-tech Development Zone, Xi'an, China, with very advanced stainless steel production facilities we process over 2,000 tons herbs annually.Relying on the abundant natural resources of the Great Qinling Mountains---a dividing line between North and South China, and medicinal plant resources from the rest of the world, wi...