LF-80t supplied by TYMEC for one steel plant in Tangshan, Hebei in north China has got successful commissioning at one time on March 7, 2019. The supply scope of TYMEC contains design, manufacture and supply of the equipment as well as the installation, direction and cold/hot commissioning for LF. In order to prompt the smooth and successful production as scheduled, TYMEC mechanical and electrical engineers went to the owner’s site for installation guidance at the end of 2018. And they tried all the best to cooperate with the user and auxiliary equipment personnel to overcome all the problems occurred, which got the highly praise from the user.