Escuadra metálica 400 mm.
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Contera Telescopic Stairs Exterior Sections - Interior measurement: 67x30 mm. -For 67 mm profiles. -Valid for the following stairs: 23020390 Aluminum Telescopic Ladder 3+3 Steps Profile 67 mm. 23020400 Aluminum Telescopic Ladder 4+4 Steps Profile 67 mm. 23020420 Aluminum Telescopic Ladder 5+5 Steps Profile 67 mm. 23020440 Aluminum Telescopic Ladder 6+6 Steps Profile 67 mm.