... 2.ROSH certificate 3.ODM/OEM accept 1.0mm aluminium cree led pcb with lead free HASL Brief introdution of ... .050mm)PlatingMin. hole size0.0008” (0.02mm)Aspect ratio20(5:1)Solder MaskColorgreen,light green,white,black,dark brown,yellow,red ... residual thickness )FR-4(1/3+-0.1mm);FR-1,FR-2,CEM-1,CEM-3(1/2+-0.1mm)V-cut ... tin,O.S.P (Entek),S/G plating,ENEPIG,G/F plating,carbon…Gold Finger angle15° 30° 45° 60° ...