Complaint
| Item | Addition amount (%) | Mold temperature(ºC) | Vulcanization time (h) | Tensile strength (Mpa) | Bongation at break (%) | Tear strength (KN/M) |
| DNR1660 | 10-20 | 80 | 24 | 1 | 140 | 8 |
| DNR1675 | 10-20 | 80 | 24 | 1 | 140 | 9 |
| DNR1650-D | 10-20 | 80 | 24 | 0.9 | 130 | 8 |
| DNR1650 | 10-20 | 80 | 24 | 0.85 | 130 | 8 |
