I found reference on three Romanian ammunition factories which seem not to exist anymore or which merged with other factories (in the 1990’s the Romanian arms industry was massively restructured) and gave up their old names.
S.C. UZINA MECANICĂ Drăgăşani S.A.
They supposedly made 14.5x114 cartridges.
S.C. UZINA MECANICĂ Filiaşi S.A.
They supposedly made 40mm rounds.
S.C. UZINA MECANICĂ Băbeni S.A.
They supposedly made 57-152mm artillery ammunition.
Any available information or product sheets of these companies would be very interesting to see.