Description :
Tenders for Supply Of 25 Mm Glass Window 3 Mm Thickness Part No 84-455 , 25 Mm Glass Window 5 Mm Thickness Part No 11-890 , 50 Mm Glass Window 6 Mm Thickness Part No 36-956 , 75 Mm Glass Window 5 Mm Thickness Part No 36-966 , 100 Mm Diameter Protected Silver Coated Mirror Part No 84-447 , 100 Mm Focal Length Achromatic Doublet Lens Part No 49- 360 , Johnson-bessel Broadband Bandpass Filters Pack Of 5 Part No 21-126 , 50 Mm Diameter Longpass Filter Part No 84-750