| 摘要 |
<p>The mat (1) has a cross-sectional surface (5) provided perpendicular to a support surface (2) approximately in a wedge-shaped manner, where the mat is made of integrally expanded plastic material i.e. polyurethane. Bulk density of the plastic material is between 99 and 121 kilogram per meter cube preferably between 108 and 112 kilogram per meter cube based on DIN EN ISO 845. The plastic material has compression stress between 15 and 23 kilo Pascal preferably between 18 and 20 kilo Pascal. Tensile strength of the material is about 210 kilo Pascal preferably 290 kilo Pascal.</p> |
