Alveolated plates

Alveolated plates large
Alveolated plates small

[Translate to english:]

Embossed plates

Pyramid embossed plate
Embossed plate - oval

[Translate to english:]

Ornamental perforations

Ornamental perforations - star-shaped
Ornamental perforations - chequerboard

[Translate to english:]

Embossed holes

Embossed round holes
Embossed long holes

[Translate to english:]

Slotted bridge perforations

Slotted bridge perforation

[Translate to english:]

Louvered perforations

Louvered perforation

[Translate to english:]

Louvered nose-type perforations

Louvered nose-type perforation

[Translate to english:]