How to change Romanian work visa into permanent residence?

Romanian work visa can be used for permanent residence with grey card. According to relevant public information, there are two types of permanent residence in Romania, one is a five-year card and the other is a 10-year card. 10 card can only be obtained if you marry a Romanian, and the others are five years. Almost forever. Just renew your residence card at the immigration office every five years. The procedure is very simple.