... natural stones, it's characterized by pure color,no fading,no radiation,contamination resistance ,high hardness,acid & alkali ... to that of the forming of granite.It has advantages of physics and chemistry ,such as even ... slab.It is ever-lasting and wear-resisting.it has no small crackless of natural stone slab. 2.It ... forms,such as arc and curved surface,it has advantages of easy craft and low cost,for ...