plating gold pcb is the best selling line in our factoory,double ... sided pcb,pcb board,rigid pcb past UL, ISO9001, ISO14001,ROHS Plating ... drilled hole size: 0.3mm6) Min. Line width: 0.13mm Min.Line spacing:0.1mm7) Surface finish/treatment ... : HASL / HASL lead free, Chemical tin,Chemical Gold, Immersion Silver/Gold,OSP,Gold plating ...