Product name: 

B66U + R21: High performance Tamping Machine and Ballast Regulator

Description: 

“MATISA B66U tamping machine and MATISA R21 ballast regulator, equipped with ASFA digital system, type machines homologated according to the 4th railway packet, for the 1435 and 1668 Spanish and Portuguese railway networks.
Post-assembly options.
Tamping machine equipped with digital recording according to current standards.”

Web: 

http://www.matisaesp.com