China's 10 major non-ferrous metal production in 2004

According to the China Non-Ferrous Metals Industry Association Express, the output of 10 major non-ferrous metals in China was 1,3978.5 thousand tons in 2004, an increase of 17.53 from the 2003 output. Including: 2061.4 thousand tons of copper, an increase of 14.88%; aluminum 6837 tons, an increase of 22.89%; lead 1811.9 tons, an increase of 12.19%; zinc 2519.4 thousand tons, an increase of 9.62%; tin 117.1 tons, an increase of 13.44 %; 锑124.9 thousand tons, an increase of 16.24%; nickel 75.4 tons, an increase of 17.02%; mercury 424 tons, a year-on-year decrease of 30.49%; sponge titanium 4964 tons, an increase of 20.55%; magnesium 426.1 thousand tons, an increase of 24.26% . In addition: electrolytic aluminum 6670.8 thousand tons, an increase of 22.43%; aluminum 4396.6 thousand tons, an increase of 20.99%.

Spherical Lenses

  • Plano-convex lenses are useful for a wide range of applications. These lenses are manufactured from UV transmitting CaF2, MgF2(specifically designed for Excimer 193~248nm) ,Corning 7980 0F grade for 230nm to 1600nm, BK7A for visible and Near IR applications and Infra-red grade Calcium Fluoride for 2-5 micron range.Lenses are uncoated but Anti-reflection coatings are available. When used to focus a collimated beam, the light should be incident on the curved surface of the lens. These plano-convex lenses may be combined with other lenses to form complex imaging systems.
  • Plano-concave lenses are useful for a wide range of applications. These lenses are manufactured from UV transmitting Fused Silica & BK7A and infra-red grade Calcium Fluoride and are excellent for use with lasers emitting in the 2 – 5 micron range .The lenses are supplied uncoated. Anti-reflection coatings are available. Please contact the Lambda`s sales team for more coating information.


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Lambda Research Optics ChangChun,LTD. , https://www.lambdachina.com

May 21, 2024