What type and parameters of the lens are used for?

[Oleksandr]

I have a problem with the lens on my F30130 (30W) laser.
The lens has a defect.
On what I can replace it?
Where I can buy it?
Which parameters it should be?

Can you help me with any information about it?

[dav]

I will arrange the shelves within 24 hours, please pay attention to NEJE.SHOP