The limestone floor is the very ancient floor material and suitable to lay down the old style room which is arranged the ancient wooden furniture and the rich local breath studio, causes the entire room to be filled with the plain style. The plain limestone floor can match with the wooden furniture, solid wooden cabinet, the oak or the pine lumber bookshelf and the similar material perfectly. The limestone floor is quite soft and scratched easily by the sand grains, not suitable to use in places such as high kitchen bathroom. Moreover corrosiveness or the acidic dirt are very easy to pollute the limestone floor, therefore llimestone needs to maintain frequently.