Dongguan Great Speed Technology Co., Ltd. is located in Chang'an, Dongguan City, China. We not only have knowledgeable, experienced and technical troop but also have advanced equipment of production and whole visage of factory inspection, best techniques, as well as high quality management persons with ability. EL (Electro luminescent) is the main product in our company, including EL electroluminescence sheets, EL lighting sheets, EL back-lighting sheets, and back-lighting source. EL is appli...View More