Wuhan Jing Ying Electronic Instrument Co., Ltd. specializes in the automatic control equipment piezoelectric crystal industry R & D, production and sales.Scientific technological innovation as leading company dedicated to China\'s large manufacturer ...

chengdu jinghua optech co.,ltd which was founded in 1992,is a high-tech enterprise specializing the manufacturing of optical elements, lens components and instrument. Located state-level economic development zone Chengdu, Sichuan Province, company ...