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Jude Shenzhen Science and Technology Agency of Japan Radio Co., Ltd. Industry Co., Ltd. (NDK) full range of products to provide the frequency performance of Crystal Units (Crystal), TCXO (warming oscillator), VCXO (voltage controlled crystal oscillator), SPXO, OCXO (temperature crystal), Crystal Clock Oscillators, Crystal Filters and Saw Device device, etc., are widely used in wireless communicati