investors exchange calls
86-755-26506648、26506649
fax
86-755-26506800
shen zhen
shen zhen
add：18/f, building b, no. 2, kefeng road, science and technology park, nanshan district, shenzhen, guangdong, p. r. china
tel：0755-66832882
fax：0755-26506800
e-mail：sdgi@sdgi.com.cn
call center
4006290070
