ENGINEE ENGINEER
in the secondary steel making process are scrap steel and direct reduced iron (DRI) or sponge ... C. Eng., MIE (Sri Lanka), (Peradeniya), (Moratuwa), Senior Lecturer, Department of Materials Science and Engineering, University of Moratuwa. ENGINEER 8 Table 1 Test report of ribbed steel bars of size 12 mm Parameter Steel grade RB 500 SLS 375: 2009 Surface .