| 摘要 |
PROBLEM TO BE SOLVED: To compensate for elasticity shortage while retaining the flexibility of a sheet made of lead, easily restore flexure and bending, prevents the sharp bending of the sheet made of lead, and prevent early corrosion from occurring due to rust or the like. SOLUTION: A lead plate lamination mat is accommodated in a bag body 2 while a plurality of sheets 4 with flexibility are laminated. A lining lead plate 1 where a plastic lining layer 5 is formed at least on the main surface of the sheet 4 made of lead, and a plurality of lining lead plates 1 are laminated through the plastic lining layer 5 for accommodating into the bag body 2.
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