Known as an experienced professional PCB manufacturer, it can produce all kinds of PCB Flexible board, Rigid board, Rigid-flex board, HDI PCB, Optical module PCB and so on , it also can provide PCBA one-stop service like PCB design, SMT and electronic components. Copper Thickness:0.5-6oz Board Thickness:0.4-4.2mm Min. Hole Size:0.1-6.5mm Min. Line Width:3mil Min. Line Spacing:3mil Surface Finishing:Flash gold(electroplated gold),ENIG,Hard gold,Flash gold, HASL Lead free,OSP,ENEPIG,Soft gold, Immersion silver,Immersion Tin,ENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finger Max Layer:48L PCB Standard:IPC-A-600 Solder Mask:Green,Black,Blue,Red, White,Yellow, Matt Green,Matt Black, Matt Blue Legend:White,Black,Red,Yellow