Portable Metal Spectrometer is used for inspection, quality control, and alloy identification. Many times this is also called a metal spectrometer and PMI machine. In Market, both benchtop and Portable both variants are available. In the benchtop most popular is the OES Spectrometer, and in the case of the Handheld Portable Spectrometer X-Ray, and LIBS Spectrometer, both are available... https://www.rimlas.co.in/metal-spectrometer/