... lacquer, Aluminum Oxide E0, E1 grade Black Walnut Engineered Hardwood Flooring Species: Oak, Elm, Merbau, Teak, Cumara, Maple, Birch, ... Layer: Hardwood plywood, HDF, etc.Bottom Layer: Beech, Cork, etc.Joint: T&G with micro bevel or as requestSurface ... , OiledMoisture Content: 8-10%Formaldehyde Emission: E1, E0Installation: Floating, Glue downWarranty: 15 years warranty for residential useMOQ: 1*20 ...