| 摘要 |
PROBLEM TO BE SOLVED: To attach ID tags with different security codes easily to cover bodies for manholes, etc. SOLUTION: A cap 2 having a recess 4 for containing an ID tag 3 and provided with a letter or figure displayed in the surface is fixed to the surface of a cover body 1 main body, having a dummy chip 5 of the ID tag 3 contained in the recess 4. |
