Sulfide vali o se ituaiga o sulfur-o loo i ai vali ma fausaga mole mole faigata. E masani ona faia i nisi o amine manogi, aminophenols ma isi mea faʻalaʻau faʻamafanafana faʻamafanafana i le sulfur poʻo le sodium polysulfide, o lona uiga, vulcanized. O vaila'au sulfide e tele lava ina le mafai ona fa'afefe i le vai, ma pe a vali, t...
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