... Diode by ourselves,Quality is well controlled.2.Professional factory with high quality & competitive price.3. We can supply OEM, ... offered bassed on order quantityesAbout us:ShenZhen TongDa Opto-Electronic co.,ltd, founded in Year 2001, specializes in ... such as : Dispenser Machine,LED Die bonder, Gold wire bonder, LED packaging machine, LED testing machine,and LED sorting &spectral color separation ...