Tianjin Free Optic Photoelectric Technology Co., Ltd. Aterese D6-A-201, Setereke sa Bochabela, Huigu Industrial Park, No. 1 Xuefu West Road, Xuefu Industrial Zone, Setereke sa Xiqing, Tianjin, Chaena. E-mail admin@free-optic.com Mohala Lithekiso: (86-22) 8137 0773 WhatsApp WhatsApp:86-131 1008 9902
