Square sapphire windows/glass optical windows/KRS-

square sapphire windows/glass optical windows/KRS-5 Optics Material: N-BK7, Fused Silica, Zerodur, Supremax, Custom Sizes: 3mm to 735mm Dimensional Tolerances: ¡À 0.012mm to ¡À 0.250mm Clear Aperture Types: circular, square, custom Aperture Sizes: up to 90% of edge dimension / surface area (typical) Surface Quality: Per MIL-PRF-13830_B; ANSI/OEOSC OP1.002-2009; ISO 10110 We are Sen Hishi Crystal S&T (Shenzhen) Co.Ltd is professional R & D sapphire (Al2O3), quartz, tungsten carbide and other hard and brittle materials. And we are a import and export trade of high-tech enterprises; have sapphire outstanding professional technical team and advanced processing equipment. We have this experience more than 20 years. And our technology team worked mainly military objects before. Our main products include: , Sapphire dome, dome shaped sapphire, sapphire super dome; Sapphire optical window films and substrates, gems square sheets and rectangular pieces; Sapphire lens, sapphire prism, blue / ruby ball, sapphire rod, sapphire laser rod; Our customers most of them from Germany, Frances, Russian, Japan, USA and so on more than 20 countries.