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本帖最后由 外贸探路者 于 2019-4-19 14:03 编辑
79 Postal services, telecommunications, radio and television 邮政、电信、广播电视
79050 Land-based telecommunication operators 地面电信运营商
79090 Telecommunications services 电话服务
79120 Postal and courier services 邮政和快递服务
79190 Radio and television operators 广播和电视运营商
79200 Radio and television broadcasting services 广播和电视运营商
79220 Communications satellite operators 通信卫星运营商
79230 Services operated by communications satellites 服务运营商,通信卫星的
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