It is a product of 100 per cent mineral origin, manufactured and blended from several types of quarry material in accordance with a specific formula and gradation curve, based on a French licence and the DIN 18035-5 standard.
It is a product of 100 per cent mineral origin, manufactured and blended from several types of quarry material in accordance with a specific formula and gradation curve, based on a French licence and the DIN 18035-5 standard.