Chinese Zhangpu Black Basalt Tumbled Cobblestone For Driveway Floor

This black basalt cobblestone made of Chinese basalt material is black. This Zhangpu basalt cobblestone is cut into a certain size on a square grid, the top surface is burning in the flame, the other sides are in a natural state, and the bottom is cut with a saw. We know that black stone has a higher density and greater hardness than other black stones. Good physical data enables this stone and products to always be used in outdoor projects for a long time. [email protected]