I don't know about Eastern China, but I was told first hand from a relative: a) General lack of maintenance in all buildings. At the most basic level this incl

I don't know about Eastern China, but I was told first hand from a relative: a) General lack of maintenance in all buildings. At the most basic level this includes keeping things clean, at a higher level fixing things when they break. b) Air pollution causing external wear. c) Individual was surprised when told a stadium was 6 years old. It looked decades old due to pollution and lack of maintenance. The locals were just going to build a new one to replace it.