Chitukuko cha crawler machine chassis chimakhudzidwa ndi zinthu zosiyanasiyana komanso momwe zimakhalira, ndipo chitukuko chake chamtsogolo chimakhala ndi mayendedwe awa: 1) Kukhazikika kwamphamvu komanso mphamvu: Makina opangira crawler, monga ma bulldozers, excavators ndi crawler loader, nthawi zambiri amagwira ntchito mkati. ch...
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