2017/09/04· The grinding plant has a production capacity of 690,000tpa of ground granulated blastfurnace slag (GGBS) that will be used in cement manufacture "GGBS is a more stable product that can substitute for cements widely used in concrete structures for ports, bridges, roads and buildings," Krakatau Steel President Director, Mas Wigrantoro Roes Setiyadi, said at the inauguration of the plant ,...