Amasilinda omoya-mpilo yiziqukathi ezinomfutho ophezulu wokugcina nokuthutha umoya-mpilo.Ngokuvamile zenziwe nge-alloy structural steel by hot punch and press, futhi ziyi -cylindrical .Isetshenziswa ezibhedlela, eziteshini zosizo lokuqala, nasezindlini zabahlengikazi. Amasilinda omoya-mpilo ayimishini efanelekile yokuhlinzeka komoyampilo ezibhedlela, iziteshi zosizo lokuqala, amakhaya asebekhulile, ukunakekelwa kwasekhaya, ukuhlenga enkundleni yempi, ukunakekelwa kwezempilo komuntu siqu, kanye komoya-mpilo owengeziwe ezindaweni ezihlukahlukene ze-hypoxic.Iwumngane obaluleke kakhulu ezigulini, asebekhulile, abesifazane abakhulelwe, abafundi, abasebenzi abamhlophe, izivakashi, imigudu, nabaqwali bezintaba.