paving stone limestone
limestone is widely used as paving stone in road and expressway in the world.
advantage:
professional manufacturer:more than 6 years
own limestone mine in Hebei, China
selected raw material
various specifications
convenient transportation
competitive price
main chemical composition:
CaCO3:95% min.
CaO:53% min.
Fe2O3:0.5% max.
MgO:1% max.
Al2O3:0.4% max.
SiO2:0.8% max.
Welcome to contact us for details.
Skype ID:hui