1.1 layer aluminium LED PCB 2.TAIYO white mask 3.Surface finish lead free HASL 4.ROHS,UL logo,SGS 5.9 years PCB experience 1) material : Aluminium material,FR4 PCB board2) function: for LED light and all electronic products3) copper thickness: 1oz copper4) thickness: 1.6mm thickness5) about 200staff members Our PCB are using for wide range of electronic products, such as project, amplifier, CCTV, ...