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I-Foundery slag ekhethekile evela eChina ingasusa ngempumelelo i-slag, ayilangi odongeni lwesithando somlilo, ayinamatheli enkundleni, ithuthukise impilo yensizakalo yesithando somlilo, futhi inciphise ngempumelelo okuqukethwe kwesibabule, I-oxygen nokufakwa kwensimbi, futhi kulula ukugcina, ukuthuthwa nokusetshenziswa. Umphumela wokulwa nokunamathela muhle, ijubane lokuncibilika lishesha, kulula ukuvusa, okuphephile futhi akungcolisi imvelo.