The phrase "old factory" refers to a building or facility that was used in the past for manufacturing goods but is now considered aged or no longer in use.
First, the prevailing school model largely reflects a century - old factory model that has become a «one - size - fits - none» strategy. (nextgenlearning.org)
The century - old factory site is being redesigned as an educational hub for modern workforce needs. (buffalourbandevelopment.com)