Aluminium checker plate, non-slip R10 in accordance with DIN 51130, heavy-duty design, with full-surface checkering, without holes for the rotary latches, for retrofitting steel covers of walk-in cable trays. for steel covers: RDS ... RDVS ... Dimensions (approx. dimensions) W: 200 mm Material thickness t: 4 mm The material thickness is made up of 2.5 mm aluminium sheet support and 1.5 mm checker height. Delivery length L: 3000 mm Material: aluminium, bright