The stainless steel heating tube is made of a high temperature resistant stainless steel seamless tube with high temperature electric furnace wires uniformly distributed in the tube, and the gap is densely filled with crystalline magnesium oxide powder with good thermal conductivity and insulation performance. This structure is not only advanced, but also has high thermal efficiency. Moreover, the heating is uniform. When the current passes through the high-temperature resistance wire, the heat generated is diffused to the surface of the metal pipe through the crystalline magnesium oxide powder, and then transferred to the heated part or the air to achieve the purpose of heating.
