承包商和主管、机械加工、金属成型、成型和安装行业及相关职业 · Contractors and supervisors, machining, metal forming, shaping and erecting trades and related occupations
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承包商和主管、机械加工、金属成型、成型和安装行业及相关职业 · Contractors and supervisors, machining, metal forming, shaping and erecting trades and related occupations