... certification : CEelectric water heater element/part Features The structure of tubular electric heating element is in a metal ... Safe using and reliablity, is the preferred electrical heating pipe for manufacturer of various electric appliances. Use scopeHeating pipes ... Tube Material: Stainless steel seamless pipe, welded pipe, copper, yellow brass pipe, carbon steel pipe Common diameter:Φ22,Φ20,Φ18,Φ16 ...