1.6mm thickness,1oz copper thickness,Polyimide,best quality control, competitive price , wildness market coverage Flexible Led strip,LED ... tin, immerse gold, Gold-plating, OSP Base MaterialPolyimideCopper Thickness0.5-1 ozBoard Thickness0.2-0.25mmSurface FinishingImmersion Gold, OSPLED FPC, Flexible ... use. SMD 3528 LED and 5050 LED. LED flexible Printed Circuit Board