... element/kettle heating element/water heating element/electric heater Quality certification :TUV,UL Kettle used Stainless steel electric heating elementFeatures:1)heating fast, reliable ... oxide2) Tube Material: Stainless steel seamless pipe, welded pipe, copper, yellow brass pipe, carbon steel pipe3) Common diameter:Φ22,Φ20,Φ18,Φ16,Φ14,Φ12 ...