CIFA and Tunnels & Formworks International (TFI) are partners in the joint development and marketing of a tunnelling product line, distributed by TFI-CIFA brand.

Together they have an integrated supply system, made up of design, equipment and products to build tunnels: traditional formwork solutions and segment moulds for tunnels and formwork solutions for bridges.

CIFA develops all the underground machinery for transport, pumping and projection of concrete.