... % Natural Real Hardwood UV lacquer, Aluminum Oxide E0, E1 grade Black Walnut Engineered Hardwood Flooring Species: Oak, Elm, Merbau, Teak, Cumara ... : Hardwood plywood, HDF, etc.Bottom Layer: Beech, Cork, etc.Joint: T&G with micro bevel or as requestSurface Treatment: Smooth, Brushed, Handscraped ... more than 3 types, each type no less than 500M2) Black Walnut Engineered Hardwood Flooring