We can manufacture it according your size. Never rust,durable,long shelf life,the surface is smooth It is slotted square tube steel ,carriage guard board #ML105Truck backplate, refrigerated back plate,carriage guard board, stayplate, are all made into sus304,or you can choose steel with zinc plated or chrome platedThe current size:3050mmX310mmX2mm thickness,We can manufacture it according your ...