External width 240 mm, internal width 168 mm, supporting edge 210 mm. Material Stainless steel AISI 304 (1.4301), Plate thickness 2 mm. Inverted pleated U-edge (outer edge) with solid stainless steel full material edge reinforcement against mechanical and thermal stress according to EHEDG. Longitudinal and transverse slope provided with 0.5% / m, 1% / m or otherwise. Buckled, flat or round bottom. Round intermediate arrows in the gutter from height 80 mm, leveling feet and concrete anchors. Strands (> = 4000/6000 mm) connectable by means of screwable EPDM coupling flanges. Equipped with slot perforator, width 197 mm, length 500 mm or 1000 mm. Load class L 15 kN according to EN 1253 (passenger traffic). The surrounding top edge is ground with 240 grain. Pickled by immersion and passivated finish.