You mean crush aggregate from 0-5mm ? and is commonly known as "lime stone grit".
The basic ingredient is suitable quarry, the basic source of raw material and for assembly line you need the following.

1. Jaw crusher with hooper and required accessories.
2. Impact Crusher with accessories.
3. Sand mill
4. Roller Conveyors of different size and lengths depending on the required production rate and configuration of your plant.

For assistance regarding equipment and installations can contact me at [email protected]