Answer
(Fatwa: 1233/1233=M/1429)
If the factory you work in is located at a place which does not meet the requirements of Jumuah prayer, then praying Jumuah is not wajib upon you. You should pray Zuhr there with Jamat. You are not asked to travel a distance of 50 km for praying Jumuah. But, if the place fulfils the conditions of praying Jumuah, the factory workers should select a proper place for it and perform it there in congregation. Mosque is not necessary to performing Jumuah.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband