... 50-70% of energy. advantages 1.Made from precious metal oxide.2. The Ceramic Tube Heater can produce much radiation ... obvious functions.descriptionCeramic Tube Heater is made from the precious metal oxides, when through the current, heat is emitted ... Baking Varnish:Baking Varnish of Car body, Motorcycle, Bicycle, Metal Furniture,Sewing Machine and Refrigerator, etc.Heating:Forming and Hardening ...