Midthaug Perforeringsbrosjyre
Formler Beskrivelse % Åpen, perforert areal Antall hull/m 2 d c c d c c d c c c c d b c 2 l c 1 b c 2 l c 1 d 2 d 1 c 1 c 2 s c 2 c 1 d 2 • 90,69 c 2 1154700 c 2 d 2 • 78,5 c 2 1000000 c 2 1000000 c 2 d 2 • 100 c 2 1000000 c 2 d 2 • 100 c 2 100 • l • b c 1 • c 2 1154700 c 2 2 d 2 • 90,69 c 2 2 s 2 • 43,3 c 1 • c 2 1000000 c 1 • c 2 1000000 c 2 • c 2 100b • (l-0,215 • b) c 2 • c 2 1000000 c 1 • c 2 7 P E R F O R E R I N G E R RUNDE HULL Triangeldeling RUNDE HULL Kvadratdeling FIRKANTEDE HULL Kvadratdeling FIRKANTEDE HULL Triangeldeling SLISSE- PERFORERING Forsatt (runde hjørner) SLISSE- PERFORERING Forsatt ( skarpe hjørner) SEKSKANTHULL Triangeldeling TREKANTHULL Rekkedeling
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