FUJIAN CASTECH CRYSTALS,INC. (CASTECH)
founded by FIRSM, CAS (Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences) in 1988, is a world famous manufacturer of crystals for lasers and their applications. It is devoted to the development, manufacturing and marketing of a wide range of NLO, laser, birefringent, Electro-Optics as well as optical crystals. The emphasis is targeted on those crystals that are the most important in current and future applications in laser technology.