... 2 layers heating floor,multi-layer, oak ,walnut, teak, jatoba,maple,hickory... Engineered wood flooring 1 three layer engineered wood flooring, species ... smooth surface, handscraped, distressed, smoked, carbonized 2 multi-layer engineered wood flooring, species: oak, maple, hickory ,jatoba, iroko,doussie ... , walnut, teak, mahogany, other exotic wood speciesthickness of veneer, 0.6/1/2/3/4/ ...