Ua hānau ʻia ka fiber aniani i ka makahiki 1930.He ʻano mea non-metallic inorganic i hana ʻia e pyrophyllite, quartz sand, limestone, dolomite, calcite, brucite, boric acid, soda lehu a me nā mea ʻē aʻe.Loaʻa iā ia ke kaumaha māmā, ikaika kiʻekiʻe, kiʻekiʻe a me ka haʻahaʻa haʻahaʻa haʻahaʻa, corrosio ...
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