Tianjin Free Optic Photoelectric Technology Co., Ltd. Adiresy D6-A-201, Distrika Atsinanana, Huigu Industrial Park, No. 1 Xuefu West Road, Xuefu Industrial Zone, Xiqing District, Tianjin, Shina. E-mail admin@free-optic.com Phone Varotra: (86-22) 8137 0773 WhatsApp WhatsApp:86-131 1008 9902
