Carbon steel boiler, with less gas, generally use the basicopenhearth steel i. e. the use of basic lining.
锅炉用碳素钢，夹杂气体较少，一般采用碱性平炉钢即使用碱性炉衬。
2
Pass splendid specimens of Anglo Norman architecture, pass pedestrians and pederasts, openhearth furnaces, basic Bessemer mills, dynamos and transformers, pig iron castings and steel ingots.
The tube bloom made by this method has given out the same physical and chemical test results as that made by basicopen-hearth furnace + vacuum degassing process + ESR process.