radiation-proof silicone silica gel cell phone cover cases Origin: Guangdong, China Size&colour:customized radiation-proof silicone silica gel cell phone cover casesShenzhen City Fuyuan Titanium Technology Co., Ltd. is located in Longgang, Shenzhen Special Economic Zone in China, is a set of titanium, germanium healthy jewelry and other rare metals R & D, design, manufacture and sales of new ...