HuNan Manufacturing Center : Building 15, Changchong Innovation and Entrepreneurship Park, Nanling Avenue, Zengfu Street, Beihu District, Chenzhou City, Hunan 

ShenZhen Manufacturing Center : Building B, DeJin 2nd Industrial Park, Fuyuan 1st road, FuYong Town, Bao'An District, Shenzhen

R&D Center : 6 / F, building 2, private enterprise science park, No. 65, Lishan Road, Nanshan District, Shenzhen

Tel：+86-755-27385188

E-mail：dugy@transin.net