The tonal of marble slab is with diversity, which generally can be divided into the white series, rice series, brunet series, even red series. What’s more, decorative pattern of each piece is regarded as the job of nature, as well as wonderful artical excelling nature, which without the same grain. This is the unique charm of natural marble , which is also the reason that its price is quite expensive. But do you know there is existing skills when choose the naturals?