Shenzhen RUNJING Electronics C)o.,Ltd is a hi-technolgy company which is specialized in quartz crystal's developing ,producing and selling .Our products include: quartz crystal resonator ,quartz crystal oscillator, quartz crystal filter, clinder crystal, SMD crystal ,ceramic crystal and so on .We have modern industrial premises, dust free workshop ,our capacity of 200 million per month .We also have leading technology, top quality , high calibration, more better antiknock ability and lower producing cost.