This kind of locking allows that both employees and vehicles pass through in a fast and easy way. And they can be adapted to any area, even in humid environments. They are made of flexible PVC with rounded edges to avoid cuts and, as they are transparent, they allow total viewing through them.
The great advantage of this system is its simplicity throughout the whole. So, it doesn´t occupy space, it doesn´t need maintenance and has a very simple assembly consisting on placing the blades overlapped to avoid the dust coming in and to ensure the minimum insulation.