... -7.0mm3) Material: FR-4, High TG, FR-4 Halogen Free,Rogers high frequency,CEM-3 ,CEM-14) Max. finished board ... spacing:3mil (0.075mm)7) Surface finish/treatment : HASL/lead free HASL, Chemical tin,Chemical Gold,Immersion Silver/Gold,OSP,Gold ... as electronic encased products Detailed Product Description:Double-Sided lead free HASL PCBSolder Mask:GreenSilk Screen:Single-sided WhiteSn thickness:≥8umBoard ...