SCHOOL BENCH BJ 270 Bench fixed to the floor. Sidearms made of die-cast aluminium finished with epoxy powder coating, black colour. A steel bar of rectangular section is fitted between sidearms. This element is used to brace the whole set and, in turn, is where the seat bracket is fixed. The seat bracket is made of folded steel plate, finished with epoxy powder coating, like the whole set. A double spring system (placed within the same piece) allows the seat pan to fold. Seat made of beech plywood, 14mm thick, bent moulded and finished with stratified surface, shade to be chosen by the customer. Backrest is made of folded steel plate. It is fixed to sidearms by means of specific hardware and security nuts. Epoxy powder coating finishing, black colour. Fixing to the floor is achieved by means of some orifices placed at the bottom of sidearms. The rail system that enables the writing tablet to fold is made of die-cast aluminium finished with epoxy powder coating, black colour. The working surface is made of MDF, 14mm thick, finished with stratified surface, shade to be chosen by the customer. Optional magazine rack made of steel rod finished with epoxy powder coating, black colour. Supports at the first row are the same as the ones used in the other models. The front structure is made with the same steel plate as backrest.