This is the 17949th most frequent Russian word.
фабрикой
"Фабрикой" is the instrumental case of "фабрика," meaning "factory" in English.
In this sentence, 'фабрикой' is used in the instrumental case, indicating the means or location associated with the verb 'produced'.
Эта мебель была произведена на фабрикой, расположенной в центре города.
This furniture was produced at a factory located in the city center.
Here, 'фабрикой' serves as the instrumental case describing sentiment or association with the factory.
Они были довольны старой фабрикой, несмотря на её возраст.
They were satisfied with the old factory despite its age.
In this example, 'фабрикой' indicates the location in proximity to the action of 'passing by'.