Micro shaft is relatively small, high precision, and some also called precision shaft, shaft, shaft core, rotor shaft, pin, rivets, guide bar and so on, the main material for mine, material of carbon steel, stainless steel, copper, aluminum, surface treatment are mainly galvanized, nickel, black, carburization, etc. Some industry also wants do salt spray test, for several days and nights don't rust. Main processing operations for thrust, grinding, surface treatment, turning, sorting, packaging, etc. Main processing equipment, grinding machine, lathe, instrument car, heat treatment, cast cylinder, etc.