Contact information
Beijing Guohua Technology Group Co., Ltd
Add: No. 9 Longyue Street, Mapo, Shunyi District, Beijing
Phone：010-53397669
Email：ghkj@www.aunv.cn
Tangshan Guohua Technology Co., Ltd
Add: No. 88 Xinke Street, High tech Zone, Tangshan City
Phone: 0315-5913666 (domestic)+1-304-960-1190 (foreign)
Email：ghkj@www.aunv.cn