Address：No.7,Yanqi River West 1st Road,    Yanqi Economic Development Area,     Huairou District,Beijing 101417,P.R.China.

Tel：+86-010-6886-3159/3178/3179

Fax：+86-010-68863285

Zip：101400

Technical service：+86-010-6166-5566/4006502862