Labor productivity improvement at Kimitsu No. 2 blast furnace K. Kakiuchi, S. Amano, T. Nakamori, N. Yadoumaru, M. Nakagome and Y. Anabuki Rev. Met. Paris, 94 3 (1997) 341-346 Published online: 17 January 2017 DOI: 10.1051/metal/199794030341