The producing process strictly conforms to the requirements of ISO9001. We have established a whole set of the standardized operative regulations which can cover all the producing process and the overall standard quality records. The purification workshops with the class 100 clean area and the class 10,000 clean area are in conformity with the requirement of GMP. There are strict systems of producing-process inspection and monitoring, clear labels for products and equipments' condition, and times of verification before the application of raw materials. Production is under absolute control from beginning to the end.