Complex sentence: From 1977 to 1997 she was director of the local FIOM Milan, with some interruptions in other categories, then the Lombard one and finally the national secretariat of the same metalworkers' union CGIL, with expertise in the automotive and steel production.
Split into simpler sentences: From 1977 to 1997 she was director of the local FIOM Milan, with some interruptions due to working with other union categories. She then moved to the regional FIOM in Lombardy, and finally to the national secretariat of the same metalworkers' union CGIL, with expertise in the automotive sector and steel production.