Profile: Crimeshield Manufacturing Ltd. is a manufacturer of security windows and barriers. Our window security barriers are used in all types of commercial units, industries and offices. Our unbreakable windows gives the building complete protection against attack. Our window grille offers anti-vandal protection for all the windows. It is made of 2 mm attack resistant perforated steel in a strong welded aluminum frame. Our grille is a durable metal perforated window security mesh mounted in front of, or behind the glass in windows or doors. The perforated screen offers protection against unauthorized access to the property through the doors or windows, while also protecting the glass against blows, rocks, or even air gun pellets.