... flooring decorative paper ( above AC3 grade). AC4 can be custom-made. Base materials are made of natural fiber( corn stalk ... formaldehyde free.2.100% water-proof, especially suitable for bathrooms and kitchens.3.Good sound-insulation with the special cavity ... black walnut, cherry , rosewood, sapeli, oak, teak, tann, sandalwood etc.Custom-made is also available. 9.Packing details:20pcs/carton, 2 ...