The supply chain for industrial metals, from copper to iron ore, has gone from being regional and fragmented to global and unified.
铜、铁矿石等工业用金属的供应链由地区性变为全球性，由分散变成统一。
The supply chain for industrial metals, from copper to iron ore, has gone from being regional and fragmented to global and unified.
铜、铁矿石等工业用金属的供应链由地区性变为全球性，由分散变成统一。
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