| 摘要 |
Siping, of a specific pattern, is used as a code to provide an identification number and/or a part number on a rubber object. The depth and width of the sipes, and the height and width of the rubber bars between the sipes, can be read using a zero contrast reading device, and the specific pattern of sipes and bars can be converted into identifying symbols such as letters and/or numbers. The identity of the object can be matched with a data base which may provide the history of the object.
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