000 00248nam a2200097Ia 4500
008 220201s9999 xx 000 0 eng d
082 _a669.18
_bTRU-S
100 _aTRUBIN K G
245 0 _aSTEEL MAKING: OPEN-HEARTH & COMBINED PROCESSES
942 _2ddc
999 _c30432
_d30432