Shenzhen Jing Rui Da Electronics CO., Ltd is the high-tech industry which specialized in producting Quartz Crystal device , such as Crystal Resonator , Crystal Filter , Oscillator , Ceramic Resonator , Ceramic Filter , SAWF etc and also the agent of EPSON , CITIZEN , KDS , JINGGONG etc. There are more than 380 employees in our company , and we can supply more than 1000 million Quartz Crystal devices per month , for which nearly 70% was exported . Our company strictly adhere the ISO9001:2000 international quality management system to manage and standardize the production , all the products have been produced and sale according to the criterion of â?? ROHS â??. Shenzhen Jing Rui Da Electronics CO., Ltd was established in March 2005 , and set up factory in FuYong at the end of the year which specialized in producing various Quartz Crystal , we have 49/S , 49/U , 49/T , 50/U , UM-1 , UM-5 , JU2*6 , JU3*8 , JU3*9 , Ceramic Resonator ZTT&ZTA ï¼?Filters ect .