... High quality, low cost&fast delivery. Welcome To Rigao ElectronicsShenzhen hasl lead free double-sided FR4 pcb board - Contract Manufacturing- ... red,blue,greenMin. Size0.006”(0.15mm)Surface FinishHASL,HASL pb free,immersion gold,immersion silver,immersion tin,O.S ... Free,Rogers,Arlon,Taconic,Isola,PTFE, Bergquist2). Surface Treatment: HASL,HASL lead-free,HAL,Flash gold,immersion gold,OSP,Gold Finger ...