... request Advanced equipment Final pcb functional testing 20years experience solar panel PCB Welocme to tianweisheng, We are professional pcb board ... Free,Aluminum material, Taconic ,94V03Board thickness0.2mm-7mm4Max panel size630mm*520mm5Min.drilled hole size0.25mm6min.line width0.075mm( ... more than 100 varieties of varieties of over 4,000 species, an area of 7,000 square meters. solar panel PCB