Aluminium Safety Seals : Aluminum safety seals consist of 2 aluminum shells with diameter of about 30mm and about 10mm height. They have a certain characteristic. One shell gets inside the other one and with the use of a wire 1mm thick you secure the point you want to protect. It is mostly used in pressure boxes counters of the Greek Electricity Company. They are also used in many applications such as barrels receptacles, doors etc. The safety seals are unique as they have code numbering of the client. They cannot be broken into as they can only be destroyed whenever a violation is visible on them.