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The rubber rolls is made of black rubber particles, which is characterized by light specific gravity, wear resistance and anti-aging.
| Material | Thickness | Door width | Density |
|---|---|---|---|
| 3mm 100% EPDM（cover） +Black rubber | 8mm | 1m | 10.2kg/m2 |
| Particle（below） | 15mm | 1m | 17.6kg/m2 |
