Beijing Green Guardee Technology CO.,LTD
Hebei Huaqing Optoelectronics Material Co.,LTD(Production Site)
www.gg-oled.com www.huaqing-chem.com
T : +86-10-69706062
F : +86-10-82781860
E-mail: sales2@greenguardee.com
Office Add: No. 509, Building 3. Science and Technology Park, Changping District, Beijing, China.
Factory Add: The New Chemical Industry Park of Guantao, Handan City, Hebei Province, China.