... electric appliances. 4.Heating pipes are widely used in showers, water dispensers, insulation pool, incubator boiling, dishwasher and various types of heating ... :Insulation materials: magnesium oxideTube Material: Stainless steel seamless pipe, welded pipe, copper, yellow brass pipe, carbon steel pipeCommon diameter:Φ22,Φ20,Φ18,Φ16,Φ14 ...