... ,high quality, competitive price,best sales service Aluminum base PCB for ledOver 7 years' experience in manufacturing100% ... , Electroless nickel immersion gold,Immersion Tin, OSP(Entek) Base Material:Polyimide(Kapton), Polyester(PET), Aluminium, FR4Copper Foil:ED ... Dielectric Strength:9.8x105v/cmFlammability:UL-94V-0Performance Test:100% electrical and electricity performance test PRIMARY ADVANTAGE1) ...