Long Tools Co. Ltd. is located in Shenzhen China, specialized production electronics, security appliances, gifts and others electronic tools which incorporates research & development, designing manufacturing together.We have advanced facilities ...

   Wainy Optics Inc. is located in a beautiful anddeveloped city of central China.   Established the 1990s, with modern manufacturingand inspection equipments, our company dedicated to designingand manufacturing optical elements, such as lenses, ...