... ,white;Surface craft: spray tin,gold-plated,immersed gold,HASL,OSP; Types:Single-sided, Double-sided, Multi-layers (max 6 ... :HASL(LF), Gold plating, Electroless nickel immersion gold,Immersion Tin, OSP(Entek) Base Material:Polyimide(Kapton), Polyester(PET), Aluminium, FR4Copper Foil ... .7% work well perfect products. PHOTOS SHOW Single sided Aluminum PCB with thickness 1.6mm,copper weight0.5 oz,HASL