... ,hexagon,oblong,etc ISO9001 Perforated sheet/ Punching hole mesh manufactured by our factory is available with following details: ... (un-perforated) area along the edge of the sheet. Normally the margin on the length are 20mm minimum ... product:perforated metal sheet, punching hole mesh, perforated metal mesh, perforated steel sheet, punched metal sheet, punched hole mesh Perforated Sheet (Factory)