The Challenge Eggleston Steel Ltd is one of the oldest companies in Derby dating back to 1809. Originally an ironmongers, they now stock, process and supply a wide range of mild steels and non-ferrous metals. Their operations use CO 2 lasers for cutting the steels and metals and the industry norm had been to use N 2 in the beam guide due to two key qualities —it is moisture and CO 2 free. Molecules of either of these would w

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