2019??11??1?????????????????????????????й????????????????Malleable Iron Pipe Fittings???????????η????????????臨???????????????????????????????????й??永???????????111.36%????????????????????????永?????????Э?????????7307.19.30.60??7307.19.30.85??7307.19.90.30?? 7307.19.90.60??7307.19.90.80??7326.90.86.88??

2002??11??25???????????????????й??????????????????????????????顣2003??10??21???????????????????й???????????????????????????????á??????????????永???????????η????????臨????????ú???????2009??4??22????????????永??????????????????????????永???????????η????????臨????????ú???????2014??8??12??????????永?????????????2019??7??1??????????????????棬?????????й??????????????????????η????????臨?????????顣

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https://www.federalregister.gov/documents/2019/11/01/2019-23902/certain-malleable-cast-iron-pipe-fittings-from-the-peoples-republic-of-china-final-results-of