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Ịrụ ọrụ Jumbo n'ime ala dị n'okpuru ala na nke m bụ Zinc
N'ebe a na-egwupụta ihe n'okpuru ala, ihe ndị na-egwupụta ihe bụ ngwá ọrụ dị mkpa maka ịwepụta mineral na mmanụ bara uru nke ọma.Drilling jumbo/drilling rig bụ ngwá ọrụ dị ike nke a na-eji gwuo oghere n'elu nkume siri ike maka ọrụ Ngwuputa na ọwara mmiri.Igwe mmiri anyị na-egwupụta mmiri hydraulic...GỤKWUO