... Diversity 4.Strict production process,professional sales ProductionnameHigh Power Ceramic Tube Wirewound Resistor,Wirewound Resistance,Non-flammable Wirewound RheostatPower rating15W- ... Copper wire or chrominum alloy wire is wound on the ceramic tube coated with non-flammable resin,good dissipation ,high stability, ... .3. More details, please contact us. High Power Ceramic Tube Wire Wound Resistor