2020??2??4???????????ó??????USITC????????????й??????????Steel Threaded Rod??????????η????????臨??????????????????????????з??????????????????????????永?????????????????????????????????????????????????????y???????????з??????????????Ч???????t??У?5??????????ó?????????????????

2008??3??26???????????????й???????????з????????????顣2009??2??20???????????????????й??????????????????????????á?2009??3??26???????????ó???????????棬????????й?????????????????????????????t???2014??3??3???????????????????й???????????е???η????????臨?????????顣2014??6??26??????????????????棬????????й??????????????????????臨????á?2014??7??22??????????ó???????????棬????????й?????????????????η????????臨???????????t???2019??7??1??????????????????棬????????й????????????????η????????臨?????????顣2019??11??29?????????????????????????????й?????????????????η????????????臨????á?

?????????????????ó???????????

????????????

??????У???

????https://www.usitc.gov/press_room/news_release/2020/er0204ll1291.htm