How about the top grade of Tieling Mingbang?

Not so good, the average price is 2500, and the attic is 4000. It takes 20 minutes to drive to Tieling city. The location is remote, the quality is poor, and the stairs are leaking everywhere. If the thickness is unqualified, it will be thickened with foam. A small earthquake will collapse and the last building will be flat. The windows in the corridor are dead and can't be opened, and the mortar for building walls is not full enough. I suggest not buying them.