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4 Layers PCB Product Highlights锛?br/ LF HASL 4 layers PCB manufacturing Board material: FR-4,TG170 Thickness: 2.0mm+/-10% Finished copper thickness 1OZ Reliable quality with competitive price and fast delivery time. Product parameter锛?/strong Board material FR-4,TG170 thickness 2.0mm+/-10% Finished Copper thickness 1OZ Layer 4 layers Finish LF HASL Solder mask color Green Legend color White Drill hole(Min.) 0.25mm Min. line space 0.1mm Min. line width 0.1mm 4 Layers PCB website:http://www.ibe-technology.net/pcb/4-layers-pcb/