Rootlieb does sell blank panels with the full set of louvers ... which limits the depth you can hammer the louver. This could be a flat plate of metal fixed below the female die.

Punching a louver naturally creates a straight edge that stands proud from the metal panel. That's where the pins come in. If Dean orients the prior louver's straight trailing edge (cut edge ...

Custom fabricated perforated aluminum screen and louvers, custom fabricated sandstone panels with aluminum window surrounds, Kingspan metal panels, Dryvit exterior EIFS There are two primary ...