Tulaga lelei:
1. Faʻasao avanoa, e mafai ona gaosia i le taimi e tasi, talafeagai mo le fale faigaluega laiti.
2. 40m/min saosaoa gaosiga, Hydraulic servo ala agai tipi, maualuga sa'o ma leai se saoasaoa gau.
3. Tulaga maualuga, fausaga fa'amea u'amea nodular, mea Cr12 Ta'avale maaa maualuga.