1. Compared to the technology of slurry reduction,3M TDT has the following advantages.
2. Stock removal rate increases substantially.(Stock removal rate can increases 2-3 times on sapphire and 5 times on flat galsses).
3. Last polishing time over 20-30% could be reduced.
4. Compared to the existing technology of carborundum on flat glasses, the reduction glasses improve parallelism one time and flatness twice.
5. Stable stock removal rate under lower work pressure could be gained.
6. More flexible technologies and more types could be chosen.
7. Initial requirements for the work are lower.Cost could be saved for clients and no more new equipments.
8. Environmental pollution would be reduced and workshop cleanliness would be improved.