Vaega ma Faamanuiaga
1. 25 tausaga mamanu ola i le tulaga opeopea @ 20 °C
2.Tubular ipu lelei ma faaumiumi le olaga taamilosaga
3.High faʻatuatuaina faʻatinoga
4.Lead calcium mate lafo grid ma faaleleia corrosion gafatia tetee
5. Dry faʻapipiʻiina ma le tuʻuina atu e faʻamautinoa ai le umi o le ola
6.Patu-fa'amaonia fa'atasi ai ma fa'apipi'i fa'apolokalame fa'apitoa