Xi'an Qingfeng Pharmaceutical Co., Ltd., formerly the Xi'an Qingua Fine Chemical Co., Ltd., is a joint-stock enterprise controlled by Xi'an Qinghhua Group subordinate to China North Industries Group Corporation. With a registered capital of 5 million RMB, the company is mainly engaged in the business of medicines, pesticides, bio-chemicals and chemical intermediates. As the largest professional domestic manufacturer of Sodium Azide with a history of more than 50 ...