... 1. Al base material,1 oz copper, board T1.6mm 2. Green ink, Immersion gold 3. Excellent quality with competitive price 1. Al base material,1 ... Free,Rogers,Arlon,Taconic,Isola,PTFE, Bergquist 2). Surface Treatment: HASL,HASL lead free,Flash ... Layer: doublelayer Material: FR4 or ALBoard thickness: 1.6mm Copper thickness: 1ozSurface finished: HASL lead ... at the soonest 2 Layer 1.6mm aluminum base pcb board