Zhengzhou Litsign Optronic Technology Co.ltd,old name Zhengzhou Zeyeng Electronic Technology Co.:ltd is national highly support and high-tech company founded in 2012)focus on designing and producing real estate agent wall mount and hanging acrylic led light boxrestaurant menu board,shopping mall billboardstores led sign,3D holographic fan display etchave a factory with 8000 square meters,70 skilled workers10 bachelor and master degree engineers,20 oversea sales.br