Within the scope of the circular of the Ministry of Industry of Turkey, the barcode labels specially produced in the USA were supplied within the scope of monitoring the LPG cylinders with 2D barcodes. These labels are printed with Metalphoto technology and are guaranteed for 20 years not to be erased and to be read without any trouble. In addition, 3M's special product is used in very strong double-sided tapes that allow them to stick to the tubes.