1) Zvinhu: aruminiyamu alloy ine tsono yesimbi isina ngura
2) kurongedza: bhegi repurasitiki + bepa rakaoma / kurongedza ganda
3) kurapwa kwekupisa kwehunyanzvi uye kuomarara kwakanyanya
4) Mashandisirwo: simbisa chikwangwani chenzeve panzeve yemhuka
5) Kuvaka Kunogara: Yakasimba uye inogara kwenguva refu. Yashandiswa nealuminium alloy, ichivimbisa kushanda kwenguva refu uye kuvimbika.