Khetha umbandela.Izixhobo zokubeka itawuli ngokuqhelekileyo ziyintsimbi engenanto, i-aluminium alloy, i-zinc alloy kunye nobhedu kunye nezinye iindidi ezi-4.Intsimbi engatyiwa sixabiso eliphantsi, ukuchasana nokubola kulungile, kodwa ulwakhiwo aluqinanga, uzinzo alulunganga;I-aluminium alloy kunye nexabiso le-alloy ye-zinc liphezulu, ukuzinza kungcono kunensimbi engenasici;I-Copper iyona nto ikhethekileyo yokuzinza, ubunzima kunye ne-gloss, kodwa ingaba yindleko ngaphezu kwayo.Ke iihenjisi zeshawari kwiingcango zeglasi