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009-Switzerland-Geneva-Workers-Roofing-Felt-Blowpipe-Torch-2014.jpg
Switzerland. Geneva. Two roofer workers from the company Cerutti Toitures SA are installing roofing felt with heat using torches and flame (gas blowpipe torch) to waterproof the roof surface. 27.03.14  © 2014 Didier Ruef