... /water heating element/electric heater Quality certification :TUV,UL Kettle used Stainless steel electric heating elementFeatures:1)heating fast, ... Tube Material: Stainless steel seamless pipe, welded pipe, copper, yellow brass pipe, carbon steel pipe3) Common diameter:Φ22,Φ20,Φ18 ... with your requirements. Quality guarantee, welcome to inquiry. Kettle used stainless steel electric heating element