EVERBRIGHT BILLION(H. K. )ENTERPRISES LTD IS A Specialised manufacturer and distributor of quartz crystal units with advanced production equipments, test instrument and professional R& D. Our products include: CRYSTAL RESONATOR, CRYSTAL OSCILLATOR, CRYSTAL FILTER, CERAMIC RESONATOR, CERAMIC FILTER. the products are widely used in time pieces, digital products, household appliances, telecommunication equipments and other frequency control devices. We professionally and faithfully concentrate on our mission: to provide the best quality QUARTZ CRYSTAL UNTIS the most reasonable price to customers all over the world.