Tianjin Free Optic Photoelectric Technology Co., Ltd. Oratio D6-A-CCI, Orientalis District, Huigu Industrial Park, n. I Xuefu West Road, Xuefu Industrial Zonam, Xiqing District, Tianjin, Sinis. E-mail admin@free-optic.com Phone Sales: (86-22) 8137 0773 whatsapp Whatsapp:86-131 1008 9902
