Juan Optical & Electronical Tech Co., Limited is a professional manufacturer which specialized in researching and developing security monitoring *域名隐藏* d in year 1999,after decades of development, the company has laid a solid foundation and accumulated rich experience. Our company has Strong technical development strength, as we have a professional R&D team, more than 20 people, of which 80% has master *域名隐藏* have been paying great attention to absorbing and training talents from dom

主要产品/业务: cctv camera,dvr,standalone dvr