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西安航空发动机公司与美国普惠公司签订的航空发动机机匣转包生产件,最近投入批量生产。 这项外贸转包件工艺复杂,制造精度高。经过两
Xi’an Aero Engine Company and the United States signed a Pratt & Whitney aircraft engine casing sub-contract production, recently put into mass production. The subcontracting of foreign trade complex process, manufacturing precision. After two