Job Recruitment Website - Immigration policy - Excuse me, what is a non-immigrant to immigrant visa, and the intermediary said that it can be done?

Excuse me, what is a non-immigrant to immigrant visa, and the intermediary said that it can be done?

I don't know which country you applied for a visa. American visas are divided into two categories: non-immigrant visas and immigrant visas, such as studying abroad, traveling, visiting relatives and working as non-immigrant visas, employer sponsorship, high-tech talents, investment and family reunion as immigrant visas. Note that changing from a non-immigrant visa to an immigrant visa is troublesome and not so easy. See if your personal or family conditions meet.