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| Soejanto Widjaja, Indra Widjaja, Peter Mulyadi. | peter@polygoncycle.com, ronny@polygoncycle.com, export@insera.co.id, polygon@polygoncycle.com |
| (62-31) 8963951, 8950313 | www.polygoncycle.com, www.insera.co.id |
| (62-811) 1983903 | (62-31) 8961781 |
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