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Signing ceremony on tricolor phosphor and LED energy-saving lamp project between Quannan government and Jiangxi Guangyan Optical Scienceand Technology Co., Ltd was held in Xiqiao Hotel,Quannan in the morning of October 18.
Signing ceremony on tricolor phosphor and LED energy-saving lamp project between Quannan government and Jiangxi Guangyan Optical Science and Technology Co., Ltd was held in Xiqiao Hotel, Quannan in the morning of October 18.