... doublelayer Material: FR4 or ALBoard thickness: 1.6mm Copper thickness: 1ozSurface finished: HASL lead free Lead time:5 working daysPrototype for standard process ... ,Arlon,Taconic,Isola,PTFE, Bergquist2). Surface Treatment: HASL,HASL lead-free,HAL,Flash gold,immersion gold,OSP,Gold Finger Palting ... quality management system,Ensure the quality of all products HASL Lead-Free for 1.5mm connector pcb