NgoSepthemba 17, 2021, uMnyango Wezohwebo wase-US ukhiphe isimemezelo esithi ukubuyekezwa kokugcina kwesihlanu kokulwa nokulahla imfucuza kwezinsimbi zepayipi ezifakwe izinqe zensimbi yekhabhoni (iCarbonSteelButt-WeldPipeFittings) ezingeniswe zivela eShayina, eTaiwan, eBrazil, eJapan naseThailand kuzophothulwa. Uma ubugebengu bukhanselwa Imisebenzi yokulwa nokulahla imfucuza kuleli cala izoholela ekulahleni kwemikhiqizo ehilelekile kuleli cala eShayina ngesilinganiso sokulahla esingu-182.90% noma ukwenzeka kwamacala, izinga lokulahla imfucuza yemikhiqizo ehilelekile kuleli cala eShayina lizoqhubeka noma lenzeke, kanti ukulahlwa kwemikhiqizo ehilelekile kuleli cala kuzoqhubeka noma kwenzeke ngesilinganiso sokulahla esingu-87.30% no-52.25%. Ukulahlwa kwemikhiqizo ehilelekile kuleli cala kuqhubeke noma kwenzeke ngesilinganiso sokulahla esingu-65.81%, kanti izinga lokulahla imfucuza yemikhiqizo ehilelekile eThailand liqhubeke noma lenzeke ngesilinganiso sokulahla esingu-52.60%. Lingu-7307.93.30.

Ngomhlaka-12 Disemba 1986, i-United States yabeka ngokusemthethweni intela yokulwa nokulahla imfucuza kumapayipi ahlanganisiwe anezinqe zensimbi yekhabhoni avela eBrazil naseTaiwan, eShayina. Ngomhlaka-10 Febhuwari 1987, i-United States yabeka ngokusemthethweni intela ephelele yokulwa nokulahla imfucuza kumapayipi ahlanganisiwe anezinqe zensimbi yekhabhoni avela eJapane. , Ngomhlaka-6 Julayi 1992, i-United States yabeka ngokusemthethweni intela ephelele yokulwa nokulahla imfucuza kumapayipi ahlanganisiwe anezinqe zensimbi yekhabhoni aqala eShayina naseThailand. Kusukela ngaleso sikhathi, i-US yenze ukubuyekezwa kokushona kwelanga okune, ngoJanuwari 6, 2000, Novemba 21, 2005, Ephreli 15, 2011, kanye no-Agasti 23, 2011. Ukuqinisekiswa kanye nesimemezelo kwenziwa izikhathi ezine. NgoJulayi 1, 2021, uMnyango Wezohwebo wase-US wakhipha uphenyo mayelana nokubuyekezwa kokushona kwelanga kwesihlanu okulwa nokulahla imfucuza kwamapayipi ahlanganisiwe anezinqe zensimbi yekhabhoni angeniswe evela eShayina, eTaiwan, eBrazil, eJapane naseThailand.