... pcb base board 2.high quality 3.Fast delivery,competitive price 4.ROHS, UL, ISO9001-2000 1. 2L al pcb ... ROHS, UL, ISO9001-2000, ISO14001Our Manufacturing Capability for PCB BoardMaterial type: aluminium baseSurface Treatment: HASL,HASL lead- ... gold,OSP,immersion silver,immersion tin,peelable mask Board Size: 650mm*1000Board Layer: 1L-4LBoard thickness: ... 1.4N/mm double sided aluminum circuit pcb board