... Safe using and reliablity, is the preferred electrical heating pipe for manufacturer of various electric appliances. 5)Heating pipes ... are widely used in showers, water dispensers, boiling, washing machine and various types of ... magnesium oxide tube Material: Stainless steel seamless pipe, welded pipe, copper, yellow brass pipe, carbon steel pipeCommon diameter:Φ22,Φ20,Φ18 ...