Changzhou Nova Import & Export Co., LTD., founded in 2019, is specialized for supply of windows, prisms, lens, domes,wafers, Laser crystals,laser optical components, infrared optical components, coated optical components, wave plates, laser lens and customized optical components. Our team with superb technology, quality products, thoughtful service for customers professional distributing of various materials of optical components such as silicon. Germanium. Zinc selenide. Zinc sulfide. Calcium fluoride. Barium fluoride. Magnesium fluoride. YAG crystal. Yttrium vanadate. Lithium niobate. Gallium arsenide. Sapphire. Quartz glass. Optical glass. Ceramics. Copper. Aluminum. Molybdenum and other infrared optical materials.