Name:Jiang Minhang
TEL:18611405317、13511061411
E-mail:jiangmh@sdgi.com.cn
Address: Room 1009, ZhuoFu Building B, #28 Xuanwai Rd. Xuanwu Dt,Beijing City, P.R.C
Name:Ge Lihua
TEL:13311098767
E-mail:gelh@sdgi.com.cn
Address: Room 1009, ZhuoFu Building B, #28 Xuanwai Rd. Xuanwu Dt,Beijing City, P.R.C