Aso Fa'asalalau:22,Aoku,2022 1. Sand: taulai i le siakiina o le oneone o le fineness modulus, vaega gradation, palapala palapala, i totonu o poloka palapala, mea susu, sundries, ma isi. E tatau ona asiasia le oneone mo faailoilo e pei o le palapala palapala ma i totonu o poloka palapala, ma le lelei o le oneone shou...
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