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(E le fa'agaioia) fa'agaau e leai se carbon
Fa'aaoga lautele i alamanuia e pei o vaila'au, suau'u, metallurgy, mea'ai, ma vaila'au, e aofia ai paipa mo le felauaiga o vaila'au, alkalis, kasa, ma vaila'au eseese.
Siosiomaga faauo, sili ona maualuga-vevela tete'e, lelei corrosion tetee, ma sili anti-static faatinoga.