Ma Sepatemaba 17, 2021, ua hoʻolaha ke Keʻena Kālepa o ʻAmelika Hui Pū ʻIa e hōʻike ana e hoʻopau ʻia ka loiloi hope ʻelima anti-dumping o nā mea hoʻopili paipu welded carbon steel (CarbonSteelButt-WeldPipeFittings) i lawe ʻia mai Kina, Taiwan, Brazil, Iapana a me Thailand. .Inā hoʻopau ʻia ka hewa ʻO nā dumping anti-dumping i kēia hihia e hopena i ka hoʻolei ʻana i nā huahana i pili i ka hihia ma Kina ma ka helu hoʻolei ʻana o 182.90% a i ʻole ka hanana ʻana o nā hihia, ka uku hoʻolei o nā huahana i komo i ka hihia ma E hoʻomau a hana ʻia paha ʻo Kina, a e hoʻomau ʻia ka hoʻolei ʻana o nā huahana i pili i ka hihia a i ʻole e hana ʻia ma ka helu hoʻolei o 87.30% a me 52.25%.ʻO ka hoʻolei ʻana o nā huahana i pili i ka hihia i hoʻomau ʻia a i ʻole ma kahi o ka hoʻolei ʻana o 65.81%, a ua hoʻomau ʻia ka nui o ka hoʻolei ʻana o nā huahana i komo ma Thailand a i ʻole ma kahi helu hoʻolei o 52.60%.ʻO 7307.93.30.

I ka lā 12 o Dekemaba, 1986, ua kau mua ʻo ʻAmelika i nā dumping anti-dumping dumping ma luna o nā mea hoʻopili paipu i hoʻopaʻa ʻia i ke kila kila mai Pasila a me Taiwan, Kina.Ma ka lā 10 o Pepeluali i ka makahiki 1987, ua kau mua ʻo ʻAmelika Hui Pū ʻIa i kahi dute anti-dumping piha ma luna o nā mea hoʻoheheʻe paipu i hoʻopaʻa ʻia i ke kila kalapona mai Iapana., Ma Iulai 6, 1992, ua kau mua ʻo ʻAmelika Hui Pū ʻIa i kahi dute anti-dumping piha ma luna o nā mea hoʻopili paipu i hoʻomaka ʻia ma Kina a me Thailand.Mai ia manawa, ua alakaʻi ʻo ʻAmelika i nā loiloi napoʻo 4, ma Ianuali 6, 2000, Nowemapa 21, 2005, ʻApelila 15, 2011, a me ʻAukake 23, 2011. Ua hana ʻia ka hōʻoia a me ka hoʻolaha ʻana i 4 mau manawa.ka hua'ōlelo.Ma Iulai 1, 2021, ua hoʻopuka ka US Department of Commerce i kahi hoʻokolokolo i ka ʻelima anti-dumping sunset review o carbon steel butt-welded pipe fittings i lawe ʻia mai Kina, Taiwan, Brazil, Iapana a me Thailand.