No. 2 Zizhuyuan South Road, 

Haidian District, Beijing, 100044

P. R. China

China National Building Waterproof Association

Tel: +86-10-88415069

Fax: +86-10-88415069

Email: Anna Zhang: zhangnabeijing@163.com; annazhang@cnwb.net; 

         Henry Zhang: zhanghengrui51@163.com; zhanghengrui@cnwb.net