| 摘要 |
For identifying a skin (1) during and after its tanning and processing it may be provided with a binary punch code (2, 8, 9) or a signal code comprising eg. radioactive or magnetic trace elements. The holes (2, 8, 9) as well as the trace elements are through-going for preserving the code intact in any split skins (3) made thereof. At its beginning and end the code is provided with a reference signal (8, 9) that may be used for showing dimensional changes during the processing. The code is moreover made on a line for facilitating the reading thereof which may take place by means of a manually operated measuring carriage (6) which is carried over the code. |
