... 2.Own factory 3.High quality 4.Delivery on time Silver grey marble Popular Size unit(mm)TileSlabCube Stone12"x12"(305X305 or ... ,China Coffee,White Jade,Crystal White,Wooden Grain Yellow,Fossil Grey,Honey Onyx, etc;3. Quality control:Polished degree: above 80 ... bundle for 30mm slab, 7-9 bundles in 20’ container. Silver grey marble