... our factory.electronic component, pcb board, electronics past UL,ISO9001,ISO14001, ROHS pcb board,electronic component, circuit pcb, electronicsOur product developed most ... Rigid PCB:1) Layer: 1, 2,multilayer2) Board finished thickness: 10%3) Material: FR-4, CEM-1,CEM-3, High TG, ... HASL / HASL lead free, Chemical tin, Chemical Gold, Immersion Silver/Gold, OSP, Gold plating 8) Copper thickness: 0.5-2.0 ...