Our Cooperation with Nihon Dempa Kogyo Co., Ltd. ( NDK) since 2014, In Sep.2019 we got Formal Authorized Letter from NDK Electronics (HK)Limited. Nihon Dempa Kogyo Co., Ltd. ( NDK) Founded in 1948, Specializing in the manufacturing of quartz crystal devices for frequency control, selection, and detection, From year 2020, Focus higher reliability, higher frequency and more compact products, Acquired ISO 9001:2015，IATF16949:2016， ISO 13485:2016，ISO/IEC 17025:2005 Certification, products widely used in IOT、Car、Mobile phone、Clock、 Network Devices、Computer、Game Device、 Digital Camera、Home Appliance、 Audio Equipment