Aeroscreen PS-S series, system with on Single side perforated skin.
There are 3 sizes within the range:
> PS-S300 (300 mm wide)
> PS-S400 (400mm wide)
> PS-S500 (500mm wide)
See below the typical sections of the profile.

PS-S 400 (Sample)

Aeroscreen PS-S series used in Sky-lights of High Speed Train Station in China

Aeroscreen PS-S series used in Sky-lights of High Speed Train Station in China