50 swing gates WHD-04 will be installed in the subway of Sofia, Bulgaria's capital.
The first lot of 30 swing gates has been already sent to Bulgaria, the next 20 gates will be sent there in March of this year.
The Sofia Underground was opened in 1998. Every day it carries 214 000 passengers. To date its active construction is being continued. Commissioning of the next stations is scheduled for the second quarter of 2012.
Enigma GUARD Ltd, the Bulgarian partner of PERCo, performs the delivery of the swing gates for the subway of Sofia.