It is a forseen rack with wheels. Each module
can lodge varias box from front, bottom and height.
It stores a same article per tunnel or tunnels.
The supplying of this type of rack is achieved from the front
and the resupplying from the back, archieveing the inventory
to be from first-entrys, first-exits.
It is easy to install, low inicial cost, flexible, can be reconfigurated
in a small amount of time, requires very little maintenance.
Consumption of background of various boxes per each tunnel.
