... factory.electronic component, pcb board, electronics past UL,ISO9001,ISO14001, ROHS pcb board,electronic component, circuit pcb, electronicsOur product ... for Rigid PCB:1) Layer: 1, 2,multilayer2) Board finished thickness: 10%3) Material: FR-4, ... FR4 Halogen Free,FR-1,FR-24) Max. finished board size: 1500mmx500mm 5) Min. drilled hole size: ... services to all sorts of printed circuit board assembly