We can supply panels with louvers positioned on an angle.
Other examples are 280 x 280 panel. Mild steel with angled row of 15mm x 130mm long louvres shown below:
Another example below is of 250mm wide x 950mm long angular louvre panel - with 12.7mm wide x 150mm long individual louvres pressed into 1.6mm aluminium.
This is for automotive side bonnet panel application.