Changzhou Qianhong Bio-pharma Co.,ltd.established in 1971,is located in Changjiang River Delta,the area most advanced in economy,education,science and technology in China.The company covers an area of over 73,000 square meters,including 20,000 square meters of modern production sites equipped with various advanced equipment and surrounded by beautiful green land,accounting for over 50 per cent of total area. The company carries out activities strictly as per GMP requirement and established a rather perfect marketing and sales netering a category of kallidinogenase,l-Asparaginase,elastase,Heparin and LMW Heparin,etc.All the products and work.This has encouraged the company to develop into a state high-tech enzyme and polysaccharide bio-pharmaceuticals manufactures. ..