a) Aerospace, fausaga, taavale, vailaʻau, faʻamau, faʻaeletoroni, faʻaogaina o meaʻai, vaega o le ogaumu ma mea faʻapipiʻi, meafaigaluega, teuteuga, siosiomaga maualalo-vevela, siosiomaga o le sami ma le sami, mea faigaluega o le ofisa, vailaʻau, uʻu, ma le gaosiga o pulp & pepa.

b) O pauta u'amea u'amea fa'apitoa e maua ai le fa'afefeteina, fa'auma luga, fa'aofuofu tete'e, machinability, oxidation tete'e, fa'ate'aina le fa'apalapala, maualuga le malosi o le vevela, ma le maualalo o le fa'alauteleina.

i) vaega uamea tui tui.