| 摘要 |
<p>The insole is made of corrugated cardboard according to DIN 55468 and VDW standard for heat insulation and moisture absorption in shoes. The corrugated cardboard can be coated and/or impregnated with a non-slip resistance, water-repellent, anti-bacterial, anti-fungal substance etc. An additional laminate layer can be inserted between the corrugations of the cardboard.</p> |
