Some physical and mechanical properties of laminated timbers used in wooden construction and furniture industry were examined. Polyurethane (PU) glue was used in the production of laminates with 5 layers. The surface layers in each laminated timber (Glulam) were from the same wood type. and the core layers were from willow wood. https://www.allfixelectricales.shop/product-category/ducted-vacuum-hose/