| specifications︰ | Features:
1. Manual Adjustable, precise controlling
2. Suitable for plastic and glass lenses
3. Adjustable groove position (front-central-rear)
4. Accurate on all profiles
5. Adjustable groove depth:
from 0 to 0.7mm
6. Groove width: 0.65mm
7. Lens thickness:
from 1.5 to 11mm
8. Lensφ：from 18 to 70mm
9. Power: 90W
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