♦ Bush hammered
Use an alloy knife to make a tool, manually or machine hit the surface of the stone to make the surface rough, a little rough; or use a chisel to dig a small hole on the surface, deliberately imitating the drop of water on the stone over the years The effect is anti-slip effect on the ground, deep and thick feeling on the wall, absorbance and heat absorption, no large-area reflection, and increase the three-dimensional effect.
Frankfurt type and round type bush hammer.
http://www.stonebrushpad.com/products.html
