Complex sentence: The shipyard was originally established in the early 1900s as the "Severnaya Verf" (Severny shipyard) which is part of the "Severnaya Verf Production Association", which includes an electrodes factory with a capacity of 20,000 tons annually and a furniture factory.
Split into simpler sentences: The shipyard was originally established in the early 1900s as the "Severnaya Verf" (Severny shipyard) which is part of the "Severnaya Verf Production Association". This association also includes an electrodes factory with a capacity of 20,000 tons annually and a furniture factory.