Machinery & Fabricated Metal Products Manufacturing(机械及金属制品制造业)
The Machinery & Fabricated Metal Products Manufacturing sector groups establishments that transform metal into intermediate or end products, such as machinery or metal parts. Important fabricated metal processes are forging, stamping, bending, forming, and machining, used to shape individual pieces of metal; and other processes, such as welding and assembling, used to join separate parts together. Establishments in this sector may use one of these processes or a combination of these processes. The manufacturing performed in the Fabricated Metal Product Manufacturing subsector begins with manufactured metal shapes. The establishments in this sector further fabricate the purchased metal shapes into a product. For instance, the Spring and Wire Product Manufacturing industry starts with wire and fabricates such items. Establishments that specifically produce machinery create end products that apply mechanical force; for example, the application of gears and levers, to perform work. The basic processes of forging, stamping, bending, forming, machining, and welding that apply in general to Fabricated Metal Products Manufacturing also apply to machinery production. Machinery manufacturing is different, however, because it typically employs multiple metal forming processes in manufacturing the various parts of the machine. Moreover, complex assembly operations are an inherent part of the production process.