Guangzhou Dongsheng Biotech Co., Ltd
Address：Room 305, Building A, No. 179, Guangpu East Road,
                Huangpu District, Guangzhou, Guangdong, China
Post Code: 510700

Tel：+86-20-28983724
Fax：+86-20-87791381  
Website：www.dongshengbio.com  
E-mail：order@dongshengbio.com
              technique@dongshengbio.com