Cologne Cathedral, Germany, is being refurbished with stainless steel supplied by ThyssenKrupp. ThyssenKrupp will deliver stainless steel corners to stabilise the cathedral and beams for the visitors’ galleries in the south tower. Harsh weather conditions and the need to cope with the wear and tear from the constant volume of visitors were both factors in the choice of material. Barbara Schock-Werner, the cathedral’s master builder, says: “Steel is a special product. In the higher sections, in particular, we like to use stainless steel, since it is the only thing that can cope with the constant battering by wind and weather… the material should last as long as possible.”