... pre-treatment, Converter, EAF, LF, VD In aspect of steel making, based on the new technologies mastered and self-developed, SDM ... .0671# RH refining furnace project of Yinshan section steel Co., Ltd of Laiwu Iron & Steel Co.,Ltd1.35MTPA2006.12850t EAF waste ... of 4.5MTPA steel project of SAHAVIRIYA Integrated Steel Co., Ltd, Thailand4.5MTPA2006.07 Steel Making EAF LF RH VD