... .Al base material,1oz copper, board T1 mm 2.Immersion gold, COB led board 3. Excellent quality with competitive price 1 ... .Al base material,1oz copper, board T1 mm2.Immersion gold, COB led board3. Excellent quality with competitive price4. Application for ... type: Aluminum baseSurface Treatment: HASL,HASL lead-free,HAL, immersion gold,OSP,immersion silver,immersion tin, peelable mask Board Size: 650mm ...