2019??12??4???????????????????????????????????????Carbon and Alloy Steel Threaded Rod?????????????????????????????????/??????????????32.26%??????????ó??????USITC????????2020??1??17?????????????????永????????????????????á??????漰????Э????????7318.15.5051??7318.15.5056??7318.15.5090???2???????7318.15.2095??7318.19.0000???2???????

2019??3??14???????????Vulcan Threaded Products Inc.??2019??2??21??????????????????????????????й?????????????????????????????????????????????飬??????????й???????????永??????????????????顣2019??9??20???????????????????????й???????????????????????????????????????????á?

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????https://enforcement.trade.gov/download/factsheets/factsheet-taiwan-carbon-alloy-steel-threaded-rod-ad-final-120419.pdf