| Fujian CASTECH Crystals, Inc. (CASTECH), founded in 1988, is specialized in manufacturing of a wide range of crystals, including NLO, laser, birefringent, E-O and A-O crystals and other optical components such as windows, prisms, polarizing optics and wave plates. As the inventor of BBO and LBO CASTECH is the exclusive patent holder of LBO crystals and its NLO devices. |
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