Tel:+86-17710193122
Office:+86-10-82780599
Fax:+86-10-82782455
E-mail:wangsy@deyankeji.com
add: Room 1-303, Qiyeshushangqu, #18 Jingxing Street, Nanshao Changping District, Beijing, P.R. China. 102299
Tel:+86-17710193122
Office:+86-10-82780599
Fax:+86-10-82782455
E-mail:wangsy@deyankeji.com
add: Room 1-303, Qiyeshushangqu, #18 Jingxing Street, Nanshao Changping District, Beijing, P.R. China. 102299