... .2L single-side v-cut al pcb base board 2.high quality 3.Fast delivery,competitive price 4.ROHS, UL, ISO9001-2000 ... : ROHS, UL, ISO9001-2000, ISO14001Our Manufacturing Capability for PCB BoardMaterial type: aluminium baseSurface Treatment: HASL,HASL lead-free,HAL,Flash gold ... punching:±0.15mmbreakdown voltage 3KV - 5KVpeel strength≥1.4N/mm double layer aluminum pcb board with single sided v-cut