Every day 30m tonnes of materials valued at roughly $80bn (€66bn; £55bn) are shifted around the world in the process of creating some 1bn types of finished products. Welcome to one of the most complicated mechanisms the human species has yet developed: the global supply chain for manufacturing.
每天約有價值800億美元的3000萬噸原材料在全球各地流轉，用於生產約10億種產成品。歡迎來到人類開發的最複雜機制之一：全球製造業供應鏈。
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