Do Guangzhou people like to fasten large iron chains to the wall for Feng Shui purposes?

I have never seen anyone do this in Guangzhou or even in the Pearl River Delta. Bolting it on the door is a way to prevent theft, but bolting it on the wall is not for decoration or Feng Shui, I have never heard of it.

Feng shui is actually the way of the five elements. Iron chains belong to gold. If the disease energy in this position is strong (the five yellow and two black disease stars belong to earth), you can also use gold items to resolve it. In theory, it is also possible to use iron chains. It's just that copper coins or copper gourds are usually used. I wonder if the iron chain can also lock in the disease.

Or in Da Gua Feng Shui, there are also methods such as nailing. Iron chains are rarely heard of. Even if they do exist, it may be the practice of certain schools. For specific Feng Shui item decorations, you can also check out my Weibo account @geniuz. I will post some #小physics knowledge from time to time.