Piston ring for use in internal combustion engine, has label that is provided on small stressed surface section within area of inner side of ring for identification of ring, where label includes text and coded barcode

摘要

The ring has inner and outer sides (14, 13), and a label that is provided on a small stressed surface section within an area of the side (14) for identification of the ring, where the area of the side (14) defines an internal diameter of the ring. The label includes a text and a coded barcode, where the text contains data such as name of a producer, manufacturing date, drawing number, code number and serial number of the ring.