natural resources and refined products
...品(Refractories and ceramics)；0307木制品(Timber products)04天然资源和精加工产品(Natural resources and refined products) 0400其他(Other)；0401矿石和矿物(Ores and minerals)；0402精矿和金属(Ore concentrates and metals)；0403煤和焦碳(Coal and ...
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