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| Item No. | Diameter | Bore | Segment size | Segment number | |
| Normal Core | Slient Core | mm | mm | mm | |
| SDUNG-12 | SDUSG-12 | 300 | 50/60 | 43/40*3.2*10/15/20 | 21 |
| SDUNG-14 | SDUSG-14 | 350 | 50/60 | 43/40*3.2*10/15/20 | 24 |
| SDUNG-16 | SDUSG-16 | 400 | 50/60 | 43/40*3.6*10/15/20 | 28 |
| SDUNG-18 | SDUSG-18 | 450 | 50/60 | 43/40*4.0*10/15/20 | 32 |