... : FR4 or ALBoard thickness: 1.6mm Copper thickness: 1ozSurface finished: HASL lead free Lead time:5 working daysPrototype ... CEM-3,FR-4,FR-4-TG170/TG180,Halogen Free,Rogers,Arlon,Taconic,Isola,PTFE, Bergquist2). Surface Treatment ... : HASL,HASL lead-free,HAL,Flash gold,immersion gold,OSP,Gold Finger Palting ... quality of all products HASL Lead-Free for 1.5mm connector pcb