... Group2.0MTPA2005.012RMHS upgrading project of Laiwu Iron & Steel Group Yongfeng Iron & Steel Co., Ltd3.0MTPA2005.083RMHS project of Yinshan South ... RMHS of 1080m3 BF project of Shandong Laiwu steel Group Yongfeng Iron & Steel Co., Ltd5.0MTPA2010.028Matched RMHS of technology upgrading ...