... anti-dry capacity factory price Stainless stee Customer required liquid heater pipeFeatures:1)fast heating, reliable quality2)The structure of ... : magnesium oxideTube Material: Stainless steel seamless pipe, welded pipe, copper, yellow brass pipe, carbon steel pipe Common diameter:Φ22,Φ20,Φ18,Φ16,Φ14 ... meet the needs of usersQuality certification : UL TUV Customer required water spiral heating pipe