| Views | |
| Extension of maintenance interval of suction rolls | 51 |
| tammikuu 2013 | helmikuu 2013 | maaliskuu 2013 | huhtikuu 2013 | toukokuu 2013 | |
| Extension of maintenance interval of suction rolls | 21 | 11 | 8 | 9 | 2 |
| Views | |
| Canada | 18 |
| China | 16 |
| United States of America | 14 |
| Finland | 3 |
| Views | |
| Toronto | 18 |
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| Tampere | 2 |
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| Sayreville | 1 |