N'oge a, ọ bụ ihe na-emekarị ka ndị mmadụ na-eji cranes na-ebuli elu, ụdị cranes dị iche iche na-eji nwayọọ nwayọọ na-abanye n'ezinụlọ ọ bụla, gụnyere Material Lifting crane, crane gwongworo, crane engine, wdg. Ya mere, taa, anyị ga-ewebata ụgbọ ala cranes nke nwere ike. chekwaa oghere.Kedu ihe kpatara kreenụ gwongworo pikọp a ji bụrụ...
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