... 1. Copper wire or chrominum alloy wire is wound on the ceramic tube coated with non-flammable resin,good dissipation , ... 2.high power rating,high overload.3.The DDR series own higher resistance value than the DQR series.4.Widely used in power supply,transducer ... KONKA ,ECTNOTE1. For customer specifications,please contact us to discuss the details.2. Different power rating owning multi weight ,dimension ...