The new vaults and domes were built with a new material, polypropylene fibers, making the cathedral the first in the world to use this material.
For this reason the cathedral became the first in the world to use this material. The new vaults and domes were built with a new material, polypropylene fibers.
The new vaults and domes were built with a new material, polypropylene fibers. For this reason the cathedral became the first in the world to use this material.
The new vaults and domes were built with a new material, polypropylene fibers. For this reason the cathedral became the first in the world to use this material.