... - Our production capability for Rigid PCB:1) layer: 1-222) Board finished thickness: 0.2mm-7.0mm3) Material: FR-4, CEM-3, High TG ... width/space: 3.5mil/3.5mil7) Surface finishing/treatment: HASL/Lead free HASL, Immersion Gold, Gold plating,Immersion silver, immersion Tin, OSP ...