GMA Optoelectronic Technology Co., Ltd.
Dongguan
Add：Shangyu Avenue, Puxin Industrial Zone, Shipai Town, Dongguan City, Guangdong Province, China 
Tel：0769-81701999 
Fax：0769-81701989 
E-mail：GMA@gdgma.com hr@gdgma.com
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Xinyang Add：No. 1, Fuqiang Road, Jinniu Industrial Cluster, Luohe District, Xinyang City, Henan Province Tel：0376-6986888 Fax：0376-6986888 E-mail：GMA@gdgma.com hr@gdgma.com
