ANALISA LAJU PENDINGINAN MOULD COOLING PADA PRIMARY COOLING WATER CONTINUOUS CASTING MACHINE SLAB STEEL PLANT 1 STUDI KASUS DI PT. KRAKATAU STEEL (PERSERO) CILEGON-BANTEN - Puspawan , Angky (Fakultas Teknik Universitas Muhammadiyah Bengkulu, 2015)