Tianjin Free Optic Photoelectric Technology Co., Ltd. Osoite D6-A-201, East District, Huigu Industrial Park, nro 1 Xuefu West Road, Xuefu Industrial Zone, Xiqing District, Tianjin, Kiina. Sähköposti admin@free-optic.com Puhelin Myynti: (86-22) 8137 0773 WhatsApp WhatsApp:86-131 1008 9902
