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      Shanghai YIZHEN electronic Science & Technology Development Co., Ltd. Established in 2002(previously in the military industry),it is one professional company that produces and sells the quartz crystal units,quartz crystal filter,quartz crystal OSCILLATOR,ceramic resonator and ceramic filter,the products are used in the telecommunication,communication,audio-visual equipment(television,VCD,DVD,etc.).

      With the principle"rofessional,Sincere,development" we have good business contact with the customer.There are branch company in ShenZhen(Shenzhen shenjiang Electronics Co.,Ltd.),there are R&D and factory in Yantai.The company bases on Shanhai,face the whole world,creates beautiful tomorrow with the domestic and international travelling trader hand in hand wholeheartedly.