Packing: 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. Aluminum retractable insect window screen