Material Aluminium base,thickness 1.6mm;Surface finished HASL competitive price ,best quality, prompt delivery & best servic Single-sided Printed Circuit Board:Layer count ... :0.3mm;Min.hole diameter:0.3mm ;Max.board size:600*1200mm ;Soldermask:green,black,red,yellow, ... % work well perfect products. Single side PCB,Aluminium base board,PCB electronic , PCB layout design,LED Aluminum PCB,1 layer PCB