Upangiri wachitukuko: kukulitsa ndi kupanga magawo apansi apansi kwa okumba apakati ndi akulu.
Development kuganizira: Kudzipereka kwa kupanga sing'anga ndi lalikulu excavator undercarriage mbali, ndiyeno tidzapitiriza kusintha mbali chassis wa zitsanzo sing'anga ndi lalikulu excavator, kusintha luso, mwatsatanetsatane mwatsatanetsatane, ndi kukwaniritsa zosowa za makasitomala osiyanasiyana.Kupereka makasitomala ndi khalidwe khola ndi wololera mtengo sing'anga ndi lalikulu excavator undercarriage mbali.
M'tsogolomu, Heli adzapitiriza kugwira ntchito mwakhama kuti apange, kuyang'ana mbali zapansi za zofukula zapakati ndi zazikulu --- "zopangidwa ku Heli, zigawo zazikulu zapansi".