I-Fiberglass iyi-inorganic non-metallic material, eyenziwe nge-pyrophyllite, isihlabathi se-quartz, i-kaolin, njll., ngokuncibilika kwezinga lokushisa eliphezulu, ukudweba izintambo, ukomiswa, ukusongwa kanye nokucutshungulwa kabusha kwentambo yokuqala., ukufakwa kokushisa, ukwahlukanisa umsindo, amandla aqinile aqinile, insulathi kagesi enhle...
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