Located in Science Park of Fuzhou Economic and Technological Development Zone, RAYSER OPTRONICS, INC. has a production, marketing, R&D and management team with 20 year industry experience and has established a complete production line from crystal growth to crystal processing as well as set up strict quality management system and company management system. RAYSER OPTRONICS is dedicated to custom-made YVO4 series crystal growth and production as well as custom-made and OEM supporting nonlinear crystal (BBO, LBO, KTA) and YAG series products, precious stone (Ti: Sapphire, Sapphire) and monocrystalline silicon reflector.