Weifang Union Biochemistry Co., Ltd. is an integrated company. Relying on the production base, we are engaged in the WNN trade in several fields.it is located at Weifang City, Shandong province, the World Kite Capital. It is near Jiaoji railway and Jiqing high express. The traffic is very convenient. Relying on the production base, WNN was founded in the year 2010. Tracing the history, our business was from 2001. In these years we focused on the researching .producing and trading of chemical ...