Supply of fasteners includes screws, bolts, nuts, screws, rivets, washers, dowels, pins and other connections. They differ from each other the threads, material, sizes and use – the app may into wood, plastic or metal. Are necessary for joiners, builders and carpenters.

Delivery, installation of roof structures and covering: -plumbing work -roofing work - carpentry work. Retail, wholesale, sale of building materials mass: -roof coverings -roof windows -plumbing products -fasteners -tools for tinsmiths, roofers, insulators.