A na-akpọkwa aka mkpuchi aluminom silicate asbestos plug na mkpuchi mkpuchi maka ọpụpụ nke ọkụ aluminom-copper-zinc smelting. A na-ejikarị eriri seramiiki aluminom silicate dị elu na usoro ndị ọzọ eme ya site na imepụta vacuum. O nwere udidi siri ike, ike nrụgide dị elu, obere nchekwa okpomọkụ na obere mbelata okpomọkụ. Ọ dabara maka ọkụ aluminom, ọla kọpa na zinc etiti, ọkụ na-eme ka ọ dị nro, ọkụ na-agbanwe agbanwe, ọkụ static, na ọkụ eletrik. Mmetụta mkpuchi okpomọkụ na mkpuchi dị mma nke mmiri na-eme ka usoro nhazi nke aluminum-copper-zinc na aluminum-copper-zinc alloy dịkwuo mfe, dị nchebe ma dịkwa irè.