... heating element/water heating element/electric heater element Stainless steel heating pipeFeatures:1. The structure of tubular electric heating ... materials: magnesium oxideTube Material: Stainless steel seamless pipe, welded pipe, copper, yellow brass pipe, carbon steel pipeCommon diameter:Φ22,Φ20,Φ18,Φ16,Φ ... your requirements. Quality guarantee, welcome to inquiry. Stainless steel liquid heating pipe