How do they engrave the wall?

Answer 1

Engraving a wall typically involves using tools to etch or carve designs into the surface. This can be done with handheld tools like chisels for stone or wood, or with power tools like rotary engravers for more intricate designs. For larger projects, laser engraving machines can be employed to precisely etch patterns into the material. The process requires careful planning and execution to achieve the desired depth and detail.