2007
Ngo-Agasti 2007, ityale imali ekusekweni kwesiseko sesithathu kwisiseko semveliso ye-zinc alloy, oko kukuthi, iworkshop ekhoyo yokufa, enemigca eyi-8 iyonke, kunye nemveliso yenyanga ye-50 yezigidi zeenkozo kunye nokusetyenziswa kwenyanga. ngaphezu kwe-240 yeetoni ze-zinc alloy.