1.2-Layer Black Lead Free HASL PCB 2.Quality and delivery ... CEM-1,CEM-3, High TG, FR-4 Halogen Free,Rogers4) Max. finished board size: 23 × 25 ( 580mm×900mm ) ... 075mm)7) Surface finish/treatment : HASL / HASL lead free,HAL, Chemical tin,Chemical Gold, Immersion Silver/Gold,OSP, ... products Detailed Product Description:2-Layer Black Lead Free HASL PCBTested by:Testing jigSolder Mask:BlackScreen:Single- ...