Matsayin ci gaban injin injin chassis yana shafar abubuwa da abubuwa iri-iri, kuma ci gabansa na gaba yana da matakai masu zuwa: 1) Ingantacciyar karko da ƙarfi: Na'urorin crawler, kamar bulldozers, excavators da crawler loaders, galibi suna aiki a ciki. ch...
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