SJLLASER established in 2007, is a global leader in manufacturing high-precision ball lens and other optical components. The company has a facility covering more than 5000 square meters in high-tech park. Our Advantages1) Diameter:0.3mm~30mm2) Diameter Tolerance:+/-0.001mm3) Roundness<0.4um4) Surface Quality:Ra10nm5) Quantity Per Month:10000000pcsAt present, we can produce over 2000 kinds and specifications of products, mainly including optical glass ball lenses, half ball lenses, aspherical lenses, hemispherical lenses, sapphire balls, ruby balls, chalcogenide glass balls, monocrystalline silicon balls, YAG crystal balls, quartz balls (JGS1, JGS2, JGS3), hole jewels, jewel bearings, sapphire microholes, sapphire tubes, jewel cups, jewel bearings, jewel rods, sapphire rods, ruby rods, jewel pistons, jewel nozzles, sapphire windows, jewel components and ceramic components.