| 摘要 |
Material 1 making it possible to afford isothermal protection, in the form of panels of large surface area and constant thickness. It is obtained by cutting into the mass of a block of polystyrene 2, the cutting operation being effected, cold, by compressing the upper face 3 of the material and this being substantially above the cutting zone, thus making it possible to give the sheet 1 obtained flexibility characteristics allowing it to be rolled up on itself and/or folded without breaking. <IMAGE>
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