使用领域 楼梯、室外墙面、室外地面、柱面、台面板 | The stairs, outdoor metope, ground outdoor, cylinder, a panel

　　岩石特征 结构致密、质地坚硬、耐酸碱、耐气候性好 | The compact structure, quality of a material is solid, acid and alkali resistant, weather resistant of good