189mm Width Natural American Walnut Engineered Wood Flooring 1. Made of 100% natural real wood. 2.10 layers Treff 189mm Width Natural American Walnut Engineered Wood Flooring 1. Made of 100% natural real wood. 2.10 layers Treffert UV lacquer/natural oil. 3. Professional and Customized. 4.30 years guarantee. Our factory has a capacity of 120,000 square meters of pre-finished wood flooring per ...