We are GLsun Science based in Guilin, China. member of TradeKey.com since May, 2013. Our business is related to Telecommunications industry and we specifically deal optical switch, CWDM, free space isolator, coupler. Please find our product details ...

Taesong System Corporation growing into a global leader in optical communication and machinery systems the 21st century. From 1987, when we began to deal with telecom materials manufacturing plants, We have been making great strides every aspect of ...

Coretech Optical Co., Ltd. (Coretech) is a combination of expertise from ITRI, leading industrial research institute with more than 6000 employees in Taiwan (Industrial Technology Research Institute) and gurus the field. Since startup 2002, has acquired ...