Video Gallery

Mondragón Tunnel

HEADQUARTERS

Calle Isla Graciosa, 1
28703 San Sebastián de los Reyes, Madrid. Spain.

PHONE

+34 91 782 34 00

E-MAIL

info@ossaint.com

 

ANONYMOUS REPORTING CHANNEL (Spanish Law 2/2023)

www.canaldedenuncias.com/es/ossa

Linkedin Youtube

© Copyright 2023. OSSA. || Over 70 years shaping pathways underground