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Perforated metal is also known as the perforated sheet, stamping plates, perforated screen, made through the metal stamping and sheet metal manufacturing. Sheet metal materials include steel, aluminum
Opening rate is calculated as follows:
Calculation of perforated metal sheet weight per square meter can be done as reference below:ps = absolute (specific) weight (Kg) , v/p = open area (%) , s = thickness mm , kg = [s*ps*(100-v