Fa'aogaina o paipa fa'aigoa fa'aigoa fa'aigoa e aofia ai:

1. Inisinia Faufale: Faʻaaogaina mo lagolago faʻavae, faʻavae, faʻailoga, ma isi.

2. Gaosi Masini: Fa'aaogaina mo le faia o fa'avaa ma vaega o masini.

3.Fale Fe'avea'i:Fa'aaogaina mo le faia o pa puipui auala, alalaupapa alalaupapa, ma isi.

4. Fale Faatoaga:Fa'aaogaina mo fale fa'ato'aga, masini fa'ato'aga.

5. Inisinia Municipal:Fa'aaogaina mo le faia o nofoaga fa'alenu'u e pei o pou moli, pou fa'ailoga, ma isi.

6.Gaosi Meaafale:Fa'aaogaina mo le faia o fa'avaa meaafale u'amea ma vaega fa'avae.

7. Fa'ato'aga Faleoloa:Fa'aaogaina mo le faia o fata faleteuoloa ma mea faigaluega fa'atau.

8.Galuega teuteu:Fa'aoga mo fa'avaa teuteu, fa'alava, ma isi.

O nei faʻataʻitaʻiga faʻataʻitaʻiga o loʻo faʻaaogaina atoatoa le lelei o paipa paipa sikuea sikuea, e pei o le corrosion resistance, malosi maualuga, ma le umi o le auaunaga.