Is the stone mill bluestone or granite?

Bluestone has high compressive strength and flexural strength, and can withstand greater pressure and impact. The surface of the processed bluestone is very smooth, wear-resistant and corrosion-resistant, and has a long service life. However, granite is very resistant to corrosion and can withstand higher temperatures, but its durability is low.

2. The raw material of bluestone is natural stone, which contains no substances harmful to human body and has good environmental protection performance; The natural properties of hemp stone are low.