Labels:crt screen | monitor | plant | stairs | windowpane OCR: 1,230R 4HOUR FIRE TYPE Y WALLBOARD RESISTIVE WALLNON OR TYPE WALLBOARD LOADBEARING GLASS FIBFR STEEL MINERAL WOOL STUD BATT TYPE OR TYPE C WALLBOARD UL DESIGNNO V438 Prev Next HOUR WALL BOARD FIBER MINE TYPEX