Grotti successfully completed works in the Karawanks railway tunnel connecting Austria and Slovenia.
The GTF 400 RC fitted with the ST 500 performed a series of structural cuts with a depth of 40-60 cm on the ceiling and walls of the Allocco tunnel between the Sasso Marconi and Rioveggio exits on the A1 highway
The GTF 250 RC was used during a set of works on the A12 along the section managed by SALT as part of operations to rehabilitate the definitive lining of several tunnels
