1.Protective tape protects aluminum frames from scratches; 2.Keep windows or doors in wooden cases; 3.Fill in the space between each two iron pallets by air bags or bubble Wrap; 4.Tie up windows or doors in wooden cases with plastic belts; 5.Tie up wooden cases in container with plastic belts. Our packages will ensure the windows and doors arrive at project job site in good condition. balcony shutter system aluminum blades sliding folding door