evolution of Shijiazhuang XING Electronics Co., Ltd. was established in April 1996, is a professional factory of piezoelectric crystal components. the production of quartz crystal units (49U series, 49S, UM series, 7x5 series, 49S-SMD series, 6x3.5 SMD series, 5x3.2 SMD series SMD, 4x2.5 SMD series), crystal oscillator clock (Dip14 series Dip8 series, 7x5 series of SMD, 5x3.2 SMD series), voltage-controlled crystal oscillator (Dip14), temperature-compensated crystal oscillators (Dip14 , 11.4x9.6 series, 7x5 series, 5x3.2 series), constant temperature crystal oscillator and monolithic Crystal filter products, are sold in dozens of countries and regions of the world. its lasting quality and excellent service is our business philosophy! Welcome the masses of customer inquiries.