| Share | Phrase |
|---|
| 23.73% | compacted preform |
| 13.73% | material [domain related] preform |
| 11.86% | lightguide preform |
| 9.98% | friction preform |
| 8.61% | green [color] preform |
| 6.75% | preform tube |
| 5.88% | backplate preform |
| 5.42% | fabricate preform [perform operation] |
| 5.30% | sinter preform [perform operation] |
| 2.67% | place preform [perform operation] |
| 1.98% | cylindrical [shape] preform |
| 1.20% | attach preform [perform operation] |
| 0.98% | form preform [perform operation] |
| 0.98% | produce preform [perform operation] |
| 0.86% | preform [does] have |