02 Ama-Cenospheres angu-150μm (ama-Microspheres e-Hollow Aluminosilicate) e-Refractory Insulation Coatings
Izicelo ze-Cenospheres (Izinto Zamaminerali Ezinwetshiwe Eziqukethe i-Alumina ne-Silica): Izembozo Zesisekelo/Izembozo Ze-Refractory, Izembozo Zokuvimbela Ukushisa, Izembozo Zokumelana Nokushisa