Certificaten en erkenningen


Mechanisch boren
Smet-GWT (NL)

BTR
Smet-Tunnelling (NL)

SNCF
Smet-Tunnelling (FR)

ProRail
Smet-Tunnelling (NL)

Aquafin (Kousmethode)
Smet-Tunnelling (NL)

Aquafin (Shortliners)
Smet-Tunnelling (NL)

Güteschutz Kanalbau VM
Smet-Tunnelling (DU)

Güteschutz Kanalbau VMD
Smet-Tunnelling (DU)

Trede 3
Smet-Tunnelling (NL)

ISO 14001 Milieumanagementsysteem
Leidingrenovatie (NL)