... Real Hardwood UV lacquer, Aluminum Oxide E0, E1 grade Black Walnut Engineered Hardwood Flooring Species: Oak, Elm, Merbau, Teak, Cumara, Maple ... : UV Lacquered, OiledMoisture Content: 8-10%Formaldehyde Emission: E1, E0Installation: Floating, Glue downWarranty: 15 years warranty for residential useMOQ: 1*20 ... than 3 types, each type no less than 500M2) Black Walnut Engineered Hardwood Flooring