This is a very long board, the length is over 1200mm.
It is a LED project board, T5 tube.
PCB spec:0.8mm, double sided PCB,1200*15mm/pcs, 1200*180/panel. Immersion Gold.
Storm Circuit can make very large PCB,we made 8 layer with over 1000mm and 12 layer with over 500mm. they are blind vias. you can find our large board here: http://www.stormcircuit.com/large-pcb.html