Customize Borosilicate Glass Bk7 Optical Hemispheric Half Ball Lens for Laser System Glass Material: Borosilicate BK7 (N-BK7): A low-dispersion crown glass composed of SiO₂ (70%) and B₂O₃ (10%), ...View More
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Customize Borosilicate Glass Bk7 Optical Hemispheric Half Ball Lens for Laser System