Nice set (for those who like fancy furniture). It was made in Romania and sold in Russia.
At the very top, the sticker says “Socialist Republic of Romania”. The republic officially existed from 1947-1989 but was known as the “People’s Republic” from 1947-1965 and then the “Socialist Republic” until 1989. That would seem to put it in the time period from 1966-1989.
At the left it says “Furniture Name - Dining Room “Sheraton”” and at the right it says “Manufacturer”, giving a name that doesn’t translate to English. The first letter is stylistically different to rest of the print but I think it reads “ДОК САТУ МАРЕ” in Russian, which transliterates to “DOK SATU MARE” in our western alphabet. However, that would be a bit like trying to convert your own name into Russian letter by letter… it wouldn’t make any sense.
Below that it says “Customer” (presumably meaning the retailer) and again a name that doesn’t translate. It says “В/О “ЗКСПОРТЛЕС”” in Russian, which transliterates to “V/O “ZKSPORTLES”” in the same meaningless way as the maker name transliterates, and then lists three locations in Russia: Moscow, Smolensk and Sennoy.