LED Epitaxial Taiwan Plant Jingdian Investment Zhaoyuan Zhaojing, the first to cross the sapphire substrate market 2019-05-07
High-efficiency energy-saving lamps still have two difficulties in replacing incandescent lamps 2019-05-07
Taiwan's Guanglei Zener diode orders have doubled month by month, and Q2 profit in 2010 will increase more than doubled in 2010. 2019-05-07