This is the 9251st most frequent Russian word.
сормовском
"Сормовском" refers to something related to Sormovo, a district in Nizhny Novgorod, Russia.
In this sentence, "сормовском" is used as an adjective modifying "рынке" (market) to indicate location or origin, relating to the Sormovsky district.
На сормовском рынке всегда много людей.
There are always many people at the Sormovsky market.
Here, "сормовском" serves as an adjective describing "заводе" (factory), signifying its association with the Sormovsky district.
Сормовском заводе производят качественные машины.
They produce high-quality machines at the Sormovsky factory.
The adjective "сормовском" modifies "парке" (park) to denote the park's location as being within the Sormovsky area.