2021??2??1??????????????????棬????????й??????????????????????????????Seamless Carbon and Alloy Steel Standard, Line andPressure Pipe?????????η???????????????臨???????????????????????????ó??????ITC?????????????η???????????????臨?????????飬???????????з?????????????????????????????????永???????????????????????????????????????????????????????????????淢???????10???????????????????????????????????2021??3??3?????????????ó????????????????????????2021??4??14???e???????????????????????ó?????????????????

2009??10??14???????????????????????й???????????????????????????????з???????????????????顣2010??9??21??????????????й?????????????????????????????????????????????????????á?2010??11??10??????????????????й??????????????????????????????????????????????????????????????永???????????η???????????????臨????????ú???????2016??3??16??????????永??????????????????????????

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https://www.federalregister.gov/documents/2021/02/01/2021-02088/certain-seamless-carbon-and-alloy-steel-standard-line-and-pressure-pipe-from-china-institution-of

https://www.federalregister.gov/documents/2021/02/01/2021-02078/initiation-of-five-year-sunset-reviews