2021??11??12???????????ó??????ITC????????????й?????·?????????????????????Freight Rail Coupler Systems and Components Thereof??????????????????????????????????????????????????????????????????й??永??????????????????????????????????β???У?5??????ó?????????????????????????????ó??????????????????????????????????????????е??飬??????2021??12??23?????????????????2022??3??8???????????????á?

2021??10??20????????Coalition of Freight Coupler Producers??2021??9??29??????????????????????????????й?????·??????????????????????????????????????????顣?e??漰????Э????????8607.30.1000???μ?????

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