Steel is one of the most commonly used metals in the world today. It’s cheap, durable and incredibly versatile and with worldwide production running at around 750 million tonnes per year it probably comes as no surprise that steel is actually the second most mass-produced item after cement. But that’s not the best thing about steel. In addition, it’s completely recyclable and requires little energy to produce it. As a result of the switch to steel from other metals in...

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