Jewel bearings

jewel bearings -Sen Hishi Typical Applications: 1 Ohmmeter; 2 Voltmeter; 3 Measuring instruments; 4 Compasses; 5 Timer; 6 Relays; Other Indicators Technical Index: Surface roughness: Rz0.05~Rz0.8 Material: Sapphire,magnesium fluoride,germanium,silicon,quartz,optical glasses and ect. Produce according to specific requirements and drawings,and also can design products for customers 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.