... oxides are used for the design of electric heating tube, with the product quality meeting the European ... parameter:1) Electric heating tube diameter: 8.0mm2) Electric heating tube materials: red copper pipe, SUS304, sus316l, sus3213) Electric heating power: 2kw, ... 3kw, 6kw, 7.5kw, 9kw, 12kw4) Insulation value of electric heating ...