加热管是在无缝金属管内（碳钢管、钛管、不锈钢管、铜管，英克莱）装入电热丝，空隙部分填满有良好导热性和绝缘性的氧化镁粉后缩管而成，再加工成用户所需要的各种型状。它具有结构简单，热效率高，机械强度好，对恶劣的环境有良好的适应性。它可用于各种液体和酸碱盐的加热，同时也适应低溶点的金属加热溶化（铅、锌、锡、巴氏合金）。
Heating pipe is made by filling electric heating wire in seamless metal pipe (carbon steel pipe, titanium pipe, stainless steel pipe, copper pipe, Inkel), filling the gap with magnesium oxide powder with good thermal conductivity and insulation, then shrinking pipe, and then processing into various shapes required by users. It has simple structure, high thermal efficiency, good mechanical strength and good adaptability to harsh environment. It can be used for heating various liquids and acid-base salts, and also for heating and melting of metals (lead, zinc, tin, pasteurized alloys) with low melting point.