rotating door panel on the sliding panel) are activated with a motion sensor in standard mode and can be accessed normally from both sides through the sliding function. In case of fire, the sliding panels [...] PROTECTION DOORS: 205 door elements for "The Circle" The construction project owners engaged Hammer Metall AG in Nänikon with the planning, manufacture and assembly of 205 steel door elements. The majority [...] logistics requirements," explains Reto Meier, Managing Director of Hammer Metal. Each door is unique Although the different door elements with their various requirements could be combined into six or seven classes