| 摘要 |
<p>An envelope for storing important combustible documents, data or anything flammable which is fire retardant to the average fire and will protect the contents K from both fire and water damage. Preferably the envelope is tough, strong and tear resistant under normal postal conditions and may be reusable. The envelope may be constructed from soft fire retardant laminated fabric Y with a ceramic filling Z. Fire retardant fastenings such as metallic buttons L and loops M or bands J may be included. The envelope may comprise outer panels A, B, inner panels C, D and side flaps and may be used to post documents or data.</p> |
