2023??7??12???????????Vulcan Threaded Products Inc.????????????????????????????й??????????Steel Threaded Rod?????????????Carbon and Alloy Steel Threaded Rod???????????飬???????й???????????????Unthreaded Pins??????????????????????????????????????е??????????????????

2008??3??26???????????????й???????????з????????顣2009??4??14?????????????й???????????????????????????????????2?????臨????飬2???????????t???????????????,?永?????????Э????????7318.15.5051??7318.15.5056??7318.15.5090??7318.15.2095??

2019??3??14???????????????????й????????й????????????????????????????????飬??????????й????????永??????????????顣2020??2??10???????????????????й???????????????????????????????????????á?2020??4??9?????????????й???????????????????????????????й???????????????????????????e??漰????Э????????7318.15.5051??7318.15.5056??7318.15.5090???2???????7318.15.2095??7318.19.0000???2???????

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https://www.federalregister.gov/documents/2023/07/12/2023-14804/alloy-and-certain-carbon-steel-threaded-rod-from-the-peoples-republic-of-china-carbon-and-alloy