... ), Tumbled, Honed,Irregular shapeTolerance:Natural layers for slate, thickness tolerance is very differentDimensions:A: Slate tiles ( or ... cut-to-size)Thickness:10-12mm ,18-21mm, 28-31mm etc300x300mm , 300x600mm400x400mm , ... stone or stone panel Thickness: 15-25mm, 15-20mm, 20-30mm, 25-30mm, 25-35mm, 30-40mm, 35-40mm etc150x600mm , 180x350mm152x610mm ...