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为了对德国 Kerpen 的 St. Martinus 教区的尖塔进行翻新,需要一个脚手架。 The designers had to meet a special challenge as the frame construction had to be set up at the spire top without applying anchorages by pressure usually used in scaffolding.
Steel frame structure consists of double-hinged and built-on frame canopy as well as glass roofing.