3-dimensional structures such as airplanes are made by assembling parts made of different materials instead of one-piece molding. The whole image where lots of pretty metal objects like petals and butterflies soar, makes the city and people live as monuments that bring the future.
The majority of airplanes are made of aluminum alloys such as duralumin, and resin and steel have been used in some cases. In recent years, carbon fiber and other materials have also been used for the surface. Lightweight polycarbonate and aluminum are used to create a monument that soars into the sky. The foundation part is made of heavy, inexpensive steel, which is easy to work with, and is concealed in the ground. By using carefully selected materials in the right places, we express accumulated technology and wisdom.