Powder metallurgy is a branch of metallurgy and materials science, is to manufacture metal powder and metal carbide powder (including mixed with a small amount of non-metallic powder) as raw materials, forming – sintering method of manufacturing materials and products industry. According to the “Classification and Code of National Economy Industry” formulated by the National Bureau of Statistics, China has classified the powder metallurgy manufacturing as a metal processing machine (C342) in the manufacture of general equipment (CFT 34) and belongs to forging machinery manufacturing (C3423).

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