lighting

Shanghai Keda Optoelectronics Sicence&Technology co;ltd.as a member company of the special committee of LED display screen industry scademy, originated from the Science & Technology Development General of Shanghai Science &Technogy University ,specializes at manufacturing LED display .Shanghai Science&Technology University began its research and manufacturing of big LED color electronic display screens in 1984.The first LED display installed on Shanghai Grand World passed the appraisal of...[Click for details]