On July 8, 2008, the National Standard Sample for Brass Spectrometric Analysis developed by our

On July 8, 2008, the National Standard Sample for Brass Spectrometric Analysis developed by our company passed the appraisal and acceptance by the competent national authorities. The standard sample determined the standard values of 11 elements of common brass standard sample and 12 elements of lead brass standard sample. It can be used for trace to constant analysis of related copper alloys, reaching the international advanced level.