... line in our factory, pcb & pcba,multilay pcb past UL,ISO9001, ISO14001,ROHS. Immersion gold circuit pcb, pcb & pcba,multilay pcbOur product ... the competition. Reference - Our Production Capability for Rigid PCB:1) Layer: 1, 2,multilayer2) Board finished thickness: 10%3 ... HASL / HASL lead free, Chemical tin, Chemical Gold, Immersion Silver/Gold, OSP, Gold plating 8) Copper thickness: 0.5-2.0 OZ9) ...