... 3)Water absorption 0.29% 100%Natural Green slate flooring tiles: Weight(Sqm./1000Kg) Thickness(mm),N/N Thickness ... Finishing:.Two sides natural.Calibrated.Honed Packing:Box and Wooden package, suitable for long-distance delivery Professional slate manufacturers, ... quarries and factories. we produce various building slate, as for: flooring slate, roofing slate, wall slate, mushroom slate, culture slate ...