针对目前管式加热炉常用炉管材料各项性能，尤其是高温性能进行了对比分析。
The contrasting and analysis on every item properties of furnace tube that mostly used in pipe heating furnace at present, especially high temperature properties, has been done.
本实用新型属于换热式转化炉炉管技术领域，主要涉及的是一种自热―换热式转化炉炉 管。
The utility model belongs to the technical field of a furnace tube of a heat exchange converter, and mainly relates to a furnace tube of a self-heating-heat-exchange converter.
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