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: Stapled union

>01/Positioning the film, 10cm (parallel)
>02/First folded edge, 2cm
>03/Second folded
>04/Third folded
>05/Stapling the fold
>06/Final result

The distance between staples should not exceed 1 cm. Be careful that the extremes are completely closed. It is very important to make the folds properly because it is a structural connection.