E masani lava ona fa'aaogaina samala e tu'imomomo ai ma'a ma ma'a i la'au Sima ma Mala.

O samala o vaega autu ia o la'ei e nutililii ai maa i ni lapopoa laiti. Sunwill e gaosia samala i ni filifiliga mulimuli e fetaui ma le tu'imomomoina o ma'a:

1, Manganeseuamea

2, Manganese +Tic carbide (fa'aumi le ola)

3, Manganese + Ceramic (fa'atele le ola)

4, Uamea martensitic 

5, Martensitic/Chrome Bimetal.

6, Uamea Martensitic + Ceramic. (ola fa'afualoa)

Fa'amolemole fa'afeso'ota'i mai mo nisi fa'amatalaga.