Matou te taulaʻi ma pulea faʻamatalaga uma o gaosiga, Naʻo le tuʻuina atu o oloa lelei i tagata faʻatau.
O mea o le slewing bearings e masani lava o uʻamea faʻapipiʻi maualuga, pei o le 42CrMo, 50Mn.
O mea o loʻo taʻavale tino o le GCr15 ma e faʻatau mai faʻatau oloa i totonu o le atunuʻu e sili ona maualuga.
Oloa o lo'o maua e aofia ai: Polo Laila Ta'itasi ma Fa'alua, Ta'avale Tolu Laila, Fa'amaufa'ailoga Fa'ailoga Fa'ailoga ma le Fa'amaufa'ailoga Fa'alotoifale, Kilia Fa'asao i fafo ma Kilia le Fa'ailoga po'o le Fa'auma muamua.