| 摘要 |
A security case includes a shell ( 1 ) formed of a wall or lining ( 2 ) made of a layered composite material. The wall or lining ( 2 ) has at least three layers ( 3, 4, 5 ) including two conductive layers ( 3, 5 ) made of an electrically conductive material between which is sandwiched an intermediate insulating layer ( 4 ) made of an electrically insulating material.
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