Analysis of metallography detection mainly the development of fasteners and other metal products, parts and components, such as microstructure, macrostructure, grain size, non-metallic inclusion, decarburization, carburizing, nitriding, intergranular corrosion, micro hardness, coating etc.. Involved in areas such as aerospace, automotive, nuclear power, wind power, railway and other high-tech industry. We have analyzed all kinds of professional equipment, including Hitachi SEM (including spectrometer), Cai Si research stage microscope, Buehler automatic mosaic and polishing equipment, automatic cutting machine, high low temperature test box, stress corrosion testing machine, program controlled heat treatment furnace, salt fog test box and other advanced analysis and ancillary equipment.