Locations

Tsinghua University Huafeng S&T Co.,Lt
100083 Beijing
China

+86 (0) 10 62394499 thhf62394499@163.com Google maps

Tian Jin Tong De
Technology and Trading Co. Ltd.
RM 708, No.7 Building,
Xin Yuan Gong Yu
No. 251 Hong Qi Nan Road
China

+86 22 23615578 Tong_de@263.net

Zhuhai Spring
Imp. & Exp. Co., Ltd
519000 - Zhuhai
China

+86 (0) 756 2617458 hilary.xiao@aliyun.com