Rea u amohela lethathamong la rona le monate la maqhama a mamati a entsoeng ka lisebelisoa tsa boleng bo holimo tsa zinc alloy.Mehatla ena ea menyako ha e sebetse feela empa e boetse e hlahisa moea oa mabothobotho le botle, e leng se etsang hore e be tlatsetso e phethahetseng ho hare-hare leha e le efe.