Ixesha lokumelana nomlilo weKlasi A iingcango zomlilo azikho ngaphantsi kwe-90min, kwaye kukho intsimbi kunye neenkuni. Ingaphakathi leengcango zomlilo zeKlasi A ngokuqhelekileyo zenziwe nge-perlite, kunye nenani elincinci lezinto eziphikisayo ezifana neebhodi ze-vermiculite ezinomlilo, iibhodi eziphambili ze-foam, i-MC flexible materials, njl.

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