... 1.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. ... : Aluminum baseSurface Treatment: HASL,HASL lead-free,HAL, immersion gold,OSP,immersion silver,immersion tin, peelable mask Board Size: 650mm*1000mmBoard Layer: ...