Copper slag is a low cost expendable abrasive suited for clean and shape
the surfaceof metal, stone, concrete and other materials .Its sharp, hard
particles can provide a fast cleaning action and an excellent surface profile.
Due to its low free silica content, it does not pose the health hazards
created by silica sand.

Garnet Sand is a natural mineral which crushed from hard almandine rock . 
Due to its specific mineral properties and a perfect combination of hardness
and solidity, it acts more like a sharp cutting tool with high sped and efficiency ，
garnet sand is the preferred raw material for water jet cutting. 

Garnet sand is a natural mineral which crushed from hard almandine rock . 
As its angular shape and a perfect combination of hardness and solidity, it acts more like a sharp cutting tool with high sped and efficiency , widely used in water jet cutting application . At the same time it's a low-dust , healthy , environmental friendly option .