Which expert looks at the concave and convex material on the door head, and what is its scientific name? Where can I buy it? I want to use this material for door decoration.

I can't seem to see it. I have seen this model many times, and most of them are finished gypsum.

But it is not practical to use finished gypsum as the door head.

Either stone, but the stone is too heavy to be a door head.

If you take this photo, just ask someone else directly.

If you look online, there's nothing you can do.

It looks a bit like a magic sculpture in shape. Magic squares and things like that.

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = The above question was answered 10 minutes ago, and someone else was asked just now.

Someone told me that this estimate is a wave board, you Baidu, pictures, search "pyramid wave board".

You go to the building materials market to see the wave board, which is much more beautiful and textured than this one.