Glass fiber na fanau mai i le 1930s.O se ituaiga o mea e le fa'ameamea e gaosia e le pyrophyllite, quartz sand, limestone, dolomite, calcite, brucite, boric acid, soda ash ma isi vailaʻau mataʻutia.E mama mama, malosi maualuga, maualuga ma maualalo le vevela tetee, corrosio...
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