Base material: FR-1 Copper thickness: 1.0oz Board thickness: 2.0mm Minimum hole size: 0.2mm Minimum line width: 4mil Minimum line spacing: 4mil Surface finishing: OSP Board dimensions: 68.2 x 68.2mm Maximum board dimensions: 600 x 600mm Conductance layer thickness: less than 1mil Insulating layer thickness: less than 3mil PTH: less than or equivalent 3mil Application: LED Solder mask: two-sided white Tech: drilling Screw holes: 3.0mm