Nanjing Spring & Autumn Biological Engineering Co.,Ltd. ,established in 2008, is a high-tech company which holds a leading position in the preparation of high-content botanic extracts. Our company is mainly engaged in the D & R, manufacturing, storage, domestic distribution and international trading of standard reference material, nature products, pharmaceutical intermediates and APIs of Chinese traditional herb medicine. We have assembled an elite D & R team with advanced technology which can provide a wide variety products with excellent quality and favorable price. We also provide customized service for massive production.
We persist in the value of Quality is the vitality and adhere to the principle of Quality first, clients supreme, reputation top-priority. We are devoted to be the most outstanding D & R center in  the field of botanic extraction.  
Having profound faith in our technique and with our responsible altitude , we assure you the quality of our products are excellent. And we shall accept refound or replace the commodity with quality problem.