... ply engineered flooring, the Bottom is birch plywood, standard E1 of Europe6) Species you can choose oak, maple, ash, merbau ... ) Formaldehyde releasing meets E1 Environmental Protection Standard10) 3 layers of natural wood provides a durable and comfortable look and feel11) Floating ... , saving maximum room space12) Intercrossing structure with 3 layers of real wood13) Perfect T&G on side and ends, ...