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Leeb Universal Porble Hardness Tester Accessories Support Rings For Shaped Materials
| No. | Type | Sketch of non-conventional Supporting ring | Remarks |
| 1 | Z10-15 |  | For testing cylindrical outside surface R10～R15 |
| 2 | Z14.5-30 | For testing cylindrical outside surface R14.5～R30 | |
| 3 | Z25-50 | For testing cylindrical outside surface R25～R50 | |
| 4 | HZ11-13 | | For testing cylindrical inside surface R11～R13 |
| 5 | HZ12.5-17 | For testing cylindrical inside surface R12.5～R17 | |
| 6 | HZ16.5-30 | For testing cylindrical inside surface R16.5～R30 | |
| 7 | K10-15 | | For testing spherical outside surface SR10～SR15 |
| 8 | K14.5-30 | For testing spherical outside surface SR14.5～SR30 | |
| 9 | HK11-13 | | For testing spherical inside surface SR11～SR13 |
| 10 | HK12.5-17 | For testing spherical inside surface SR12.5～SR17 | |
| 11 | HK16.5-30 | For testing spherical inside surface SR16.5～SR30 | |
| 12 | UN | | For testing cylindrical outside surface, radius adjustable R10～∞ |