Our business puts emphasis over the administration, the introduction of talented staff, plus the construction of employees building, striving hard to boost the standard and liability consciousness of staff members. Our corporation successfully attained IS9001 Certification and European CE Certification of Dual Filters, 529nm Long Pass Filters , Fused Silica Glass Lens , Cylinder Lens ,Airport Prism . Welcome buddies from all over the earth come to visit, tutorial and negotiate. The product will supply to all over the world, such as Europe, America, Australia,Berlin, Algeria,Paraguay, Russia.As an experienced factory we also accept customized order and make it same as your picture or sample specifying specification and customer design packing. The main goal of the company is to live a satisfactory memory to all the customers,and establish a long term win-win business relationship. For more information,please contact us. And it's our great pleasure if you like to have a personally meeting in our office.