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25inch Newtonian Reflector telescope mirror blank For Sale

25inch Newtonian Reflector telescope mirror blank
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25inch Newtonian Reflector telescope mirror blank:
$2000.00

Outer circle diameter 640mm China optical glass K9=BK7,mirror blank thickness 53mm ± 1mm, weight 43Kg. Precision Annealed.Cylindrical cold processing and is original melting casting surface, a surface is transparent horizontal , with wave band depth 0.5mm, basically is flat.and supplies for grinding your own telescope mirror.I will cover the shipping.Packing EPE model with carton,Ensure that no danger of anything going wrong!
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