... .5mm,surface flatness: +/-0.3mm;color difference: control similar color, and pack separate with a little different color difference.7)Terms ... Granite Slab, Granite, Chinese Granite, Granite Tile, Slab, Stone Slab, Stone Black Granite, Granite Stone, Granite Countertop, Stone Product, Granite Panel, Granite Material, China Black Granite, China Black Granite Stone ,Imported Granite(Brazil ...