- MOQ5 Piece
- Supply TypeManufacturer, Exporter, Supplier
- Preferred Buyer Location All over the world
Surafce quality:2010~8050 *material:bk7 a glass, quartz, caf2,znse,optical crystals or others *parallelism:1 arc min *clear apenture:90% *squaresrectangles:1mm to110mm+-0.2mm *center thickness tolerance:+-0.1mm *surface quality:60-40 to 2010 scratchdig.