Based in Belleville, Mich., Angstrom Inc. is a source for arc-spark spectrometers and X-ray sample prep equipments. Established in 1962, it offers routine and emergency service plans for Angstrom or non-Angstrom arc-spark spectrometers. The company provides hot metal molds that are available in a variety of sizes, types and materials for casting samples to conduct analyses via spectrometers. It also offers tools for preparing a variety of samples prior to X-ray analysis, including a ring pulverizer for homogenizing and powdering solid samples, as well as a briquetting press for pressing powdered samples into solids for analysis.