1. Strong in sound insulation 2. Good in heat insulation 3. High moisture absorption 4. Low thermal conductivity, excellent texture, and high contact comfort (the first four advantages are obtained by extending the porous structure)

5. Cultural attributes

5.1 Weathering resistance, limestone slowly hydrates in water. Even if the surface is dry, the hydration process will continue, that is, the material is getting harder and harder. Most European and American classic buildings are made of limestone. Even after hundreds of years, the condition is still good;

5.2 Easy carving

The limestone itself has good structural color stability. This feature is in line with aesthetic standards and relatively low cost for shaping various shape arts;