Hot metal pre-treatment, Converter, EAF, LF, VD In aspect of steel making, based ... -developed, SDM can provide engineering and EPC for such smelting projects as hot metal pre-treatment, converter, electric furnace ... Ltd of Laiwu Iron & Steel Co.,Ltd1.35MTPA2006.12850t EAF waste heat utilization project of Special steel plant of Laiwu ... Steel Co., Ltd, Thailand4.5MTPA2006.07 Steel Making EAF LF RH VD