Shijiazhuang Zhengfang Science And Technological Informatio
[ Manufacturer ]Main business are Desk printed plate-making, Computer
Shijiazhuang Dewei Audio-visual Equipment Co., Ltd.
[ Trader ]Main business are Audio-visual teaching equipment, Computer.
Hebei Zhonghe Baihui Technology Co., Ltd.
[ Trader ]Main business are Projector, Intelligent electronic speech desk, Projection screen, Power amplifier etc.