This is an automatic spill barrier.
Have not seen one installed::
http://www.denios-us.com/documents/DENIOS_Automatic_Doorway_Spill_Barriers.pdf
Catalogs & Brochures | DENIOS Inc.
Have not seen one installed::
http://www.denios-us.com/documents/DENIOS_Automatic_Doorway_Spill_Barriers.pdf
Catalogs & Brochures | DENIOS Inc.