Special perforering, präglade plåtar

Präglade plåtar

BPD1
Alveolated plates large
BPD2
Alveolated plates small
BPD3
Pyramid embossed plate
BPD4
Embossed plate – oval

Dragna hål

BPD5
Ornamental perforations – star-shaped
BPD6
Ornamental perforations – chequerboard
BPD7
Embossed round holes
BPD8
Embossed long holes

Rivjärnsperforering

BPD9
Slotted bridge perforation
BPD10

Hattperforering

BPD11
Louvered perforation
BPD12
Louvered nose-type perforation