High security container barrier seals ISO 17712:2013 approved. In order to avoid any possibility of container doors opening, the two central barriers of the container should be locked as tightly as possible, according to the sequence of holes on the metal bar. Thanks to its technical measures, FORK SEAL is a really safe product. It is also CARBONITRITED, which makes really difficult to cut it. Both the metal bar and the seal have the same numbering and customization. It is not possible to both reproduce them except at really high cost.