Shaanxi Sirui Advanced Materials CO., LTD is professional in manufacturing of copper- chromium (CuCr) electrical switching contacts for vacuum interrupter (VI), copper- tungsten (CuW) arcing contacts for SF6 switchgear, CuCrZr alloy parts, short circuit ring /bar and shrink ring used in high traction motor, metal chromium, as well as the key components and assemblies for medical X-ray tubes. These products are widely used in power system, wind power, railway, high-speed train, super alloy, oil and gas, injection mold, shipbuilding industry, 3D printing, automobile, healthcare industry etc. Sirui was founded in 1995, and now has been the largest vacuum contact materials manufacturing base in the world with the capacity of 8 million pieces of contacts per year. The company possesses more than 700 facilities for various manufacturing and testing. Sirui has been certified by ISO9001:2008 quality system, ISO14001:2004 environmental management system, OHSAS18001:2007 occupation health safety management system,IRIS:2009 international railway industry standard and ISO/TS16949:2009 quality system.