owing to good service, a variety of high quality products, competitive prices and efficient delivery, we enjoy a good reputation among our customers. We are an energetic company with wide market for Dome Lens Top, Optical Glass Lens , Cuboid Rectangular Prism , 840 To 1100nm Long Pass Filters ,Medical Filters . For additional queries or should you might have any question regarding our goods, make sure you do not hesitate to call us. The product will supply to all over the world, such as Europe, America, Australia,Greece, Sri Lanka,United States, San Diego.With good quality, reasonable price and sincere service, we enjoy a good reputation. Products are exported to South America, Australia, Southeast Asia and so on. Warmly welcome customers at home and abroad to cooperate with us for the brilliant future.