The metallurgical effects of 80 t top blowing and combined blowing oxygen converters at Baotou Iron and Steel Co have been investigated.
对比了包头钢铁（集团）公司炼钢厂80 t顶底复合吹炼转炉和顶吹氧气转炉的冶金效果。
3
The adhesive forces betwenn V T i iron and ductile iron have been measured in Ultra High Vaccum adhesion equipment in situs The surface temperature of iron under the equalibrilum state is calculated.