O le faaupuga "wet end chemistry" o se faaupuga faapitoa i le faiga o pepa.E masani ona faʻaaogaina e faʻamatala ai vaega eseese (e pei o filo, vai, ma isi), faʻatumu, vailaʻau faʻapipiʻi, ma isi) le tulafono o fegalegaleaiga ma gaioiga.I le tasi itu, e mafai ona faʻaaogaina kemisi susū e faʻaleleia ai ...
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