During 40-year developmenet, IQD become a market leader in frequency control market. We are delicated to manufacturing the most comprehensive frequency products. We have a great deal of active customers over 60 countries. Our products have a extent range from low cost commercial grade product to the high reliability industrial, automotive and military grade applications. Our products contain not only Quartz Crystals,Clock Oscillators,Automotive Crystals & Oscillators to AEC-Q200/TS16949,Fast Make Oscillators,VCXOs,TCXOs & VCTCXOs,OCXOs,GPS Disciplined OCXOs, but also Rubidium Oscillators.