2022??10??19??????????????Coalition of Freight Coupler Producers??2022??9??28??????????????????????????????й?????·?????????????????????Freight Rail Couplers and Parts Thereof????????????????????顢???????ī???????·??????????????????????????????顣?????漰????Э????????8607.30.1000???μ?????????????ó??????ITC????????2022??11??14??????????????????á?

??????????2021?????????й??永???????????3519.8?????????ī?????永???????????2020.5???????

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https://www.trade.gov/faq/initiation-antidumping-duty-and-countervailing-duty-investigations-certain-freight-rail