The Horizontal Venetian blinds quality standards developed by us are a set of information that the Customer should take into account if they are offered products from this group. This set includes all characteristic properties of wooden window blinds that are bed on the natural properties of wood, e. g. the possibility of presence of rings and knots on the slats surfaces, slight differences in shading and structure and the possibility of deformation of the slats as a result of external influences. Please study the provided list and treat it as an additional source of information on horizontal blinds, as an amendment to our technical folder.