What's the name of an old house with only two or three floors?

There is no exact name, generally called tube-shaped building, simple building, unity building, single dormitory and so on. It's a product of the fifties and sixties. Take a closer look. It has slogans of that era or quotations from Chairman Mao.

* * * Use faucets and toilets. Honeycomb coal and sundries are put in the corridor. Cooking in the corridor.