1. Baidu map shows that Changsha Sien Electronic Technology Co., Ltd. is located at 20 1, Building 8, hunan international economics university Dormitory, Changsha High-tech Development Zone. Its business scope includes electronic products, cleaning technology, research and development of glass cover and LCD screen, and sales of electromagnetic shielding equipment.
2. Tian Jian Security Equipment Firm in Yuhua District, Changsha City is located at No.30, Building 6, Gao Qiao Market, Yuhua District, Changsha City, according to Baidu map query. Its business scope covers agricultural and sideline products, disinfectants, medical inspection equipment and appliances, health products, fire extinguishing agents, soil conditioners, security equipment, electromagnetic shielding equipment, radiation protection equipment, chemical defense equipment for civil air defense projects, etc.