THis European Standard specifies the methods for measuring and expressing: some natural characteristics of wood, and the defects that come from the manufacturing process which are used for the classification of the appearance of plywood surfaces according to EN 635-1, EN 635-2 and EN 635-3.
Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
Shqip