1.E faʻaaogaina i le gaosiga o plasticizers, faʻamaʻi.
2.O loʻo faʻaaogaina i le gaosiga o resini faʻapipiʻi, faʻapipiʻi, lanu felanulanuaʻi, ma isi.
3.E faʻaaogaina e avea ma faʻamalamalamaga muamua i le faʻapipiʻi nickel susulu. E fa'aaogaina mo le fa'apipi'iina o le nickel lalaga tele e fa'amalamaina ai le fa'alavalava.
