Calaf Trenching will attend the "Hi Tech Recursos Naturals" fair with its 800/140 surface miner, Hi Tech is the First high technology workshop in natural resources and services for digging minerals in the Mediterranean arc next May 4 In the quarry of "La Falconera" in Garraf.
Calaf Trenching will demonstrate in situ digging with limestones using rubbing techniques with its 800/140 surface miner.
http://firahitech.upc.edu/en/home/
