4J28 uamea u'amea o seuʻamea-nickel-kobalta (Fe-Ni-Co) faʻatonutonu faʻalautelega faʻapipiʻiua fuafuaina faapitoa mofa'amaufa'ailoga tioata-i-u'amea ma sima-i-u'ameatalosaga. O lo'o i ai se fa'asologa fa'alautele laina e fetaui tonu ma tioata malo ma sima, fa'amautinoaina le fa'amaufa'ailogaina o le hermetic.
Faʻatasi ai ma le malosi faʻainisinia mautu, faʻaogaina lelei, ma faʻamaufaʻailoga tulaga ese,4J28 tootoos e fa'aaogaina lautele iafifiina faaeletonika, masini gaogao, vaega semiconductor, ma mea faigaluega aerospace.
Fe-Ni-Co uʻamea faʻatasi ma le faʻalauteleina o le vevela
Lelei fa'amaufa'ailoga fa'atasi ma tioata ma sima
Malosi fa'ainisinia mautu i vevela eseese
Faigofie machining ma luga togafitiga
Fa'atuatuaina hermeticity umi umi
E maua i la'au, uaea, laupepa, ma fomu fa'apitoa
Fa'amaufa'ailoga fa'amaufa'ailoga tioata-i-u'amea
Vaega fa'apipi'i eletise
Vacuum tube ma matauila
Fa'avae fa'apipi'i Semiconductor
Aerospace ma mea tau puipuiga
Fale fa'alogo ma fafaga