大部分建管道用管子的钢材由平炉、电炉和碱性顶吹转炉生产。
Most of the steel for line pipe is made by open-hearth, electric furnace, and basic-oxygen processes.
通过微型电炉实验，研究了膨胀型钢结构防火涂料的酸碱性对其防火隔热性能的影响。
The influence of pH value of dilatant fire retardant coatings for steel structure on its fireproofing performance is studied by using a micro electric furnance.
通过微型电炉实验，研究了膨胀型钢结构防火涂料的酸碱性对其防火隔热性能的影响。
The influence of pH value of dilatant fire retardant coatings for steel structure on its fireproofing performance is studied by using a micro electric furnance.
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