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single-leaf and double-leaf fire resistant doors forster fuego light El30, glass elements – connected with butt joints – forster fuego light El30/El60 Architecture: IPAS Architectes SA – Éric Ott, Neuchâtel (CH)
construction, the frame corners are not bevelled but welded into one unit. As a result, there are no butt joints through which moisture can penetrate into the frames. Their surfaces were finished in the