Are granite countertops safe?
18759566040@139.com2020-06-17T07:17:15+00:00As you know, for the strong natural characters of granite stone, granite has a high silica content and is an acid rock. Some granites contain trace amounts of radioactive elements, and such granites should be avoided for indoor use. The granite has a dense structure, a hard texture, good acid and alkali resistance, and good