Newport 4" Double Surface Optical Flat, Master Grade 0.000002" L/15 Flatness, Fused Silica. Surface quality: Mil spec 10-5. Surface flatness: master grade 0.000002" (L/15). Material: Fused Silica. in Original Plastic Storage Box.
Newport 4" Double Surface Optical Flat, Master Grade 0.000002" L/15 Flatness, Fused Silica. Surface quality: Mil spec 10-5. Surface flatness: master grade 0.000002" (L/15). Material: Fused Silica. in Original Plastic Storage Box.
Surface quality: Mil spec 10-5. Surface flatness: master grade 0.000002" (L/10). Material: Fused Silica. in Original Plastic Storage Box.