Shenzhen city billion industries electronics ltd. Has been specialized in research and development, production and marketing for over 20 years. Main products: active crystal vibration osc, discretionary crystal vibration, straight interpolation of crystal vibration pxo, accomplished crystal vibration tcxo, non- vibrating crystal vibration. Main packagings: dip14, dip08, 7050, 6035, 5032, 3225, 49s, 49smd. Plants are strictly compliant with iso 9001 quality management systems to reduce costs and upgrade quality。