Cover, heavy-duty design, with fully riveted lightweight aluminium checker plate, without twist-lock fasteners, for walkable cable trays. Other anti-slip coverings available on request. To attach the cover, cover retaining springs RDHFS 9... must be ordered separately if required. To support the walkable cover, please note the minimum number of dividers (see divider RWTS..., RTSKQ..., RTSQF... and RW...-...)! Can be used for: walkable cable trays Dimensions (approx. dimensions) B (inside): 505 mm Material thickness t: 4 mm The material thickness consists of 2 mm sheet steel, 1.5 mm aluminium sheet support and 0.5 mm checker height. Delivery length L: 3000 mm Material: steel, strip galvanised DIN EN 10346