Lipped hole – Type DLR
Lipped hole – Type DLC
Lipped hole in parallel row (DLRU)
Perforation mark: DLR (w*l) U (t1*t2)
Shape of hole DLR or DLC – optional
Perforation direction optionally a1 ili b1
Lipped holes in staggered row (DLRZ)
Perforation mark: DLR (w*l) Z (t1*t2)
Hole shape DLR or DLC – by choice
Perforation direction a1 or b1 by choice
Vent holes (V)
Perforation mark: V (w*l)
Holes schedule by choice
Perforation direction a1 ili b1 by choice.
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