double-sided  PCBs

*Base material: FR-4 

*Copper thickness:   0.5-2.0 oz

*Thickness: 0.2-3.0mm

*Solder mask: green, black, red ,yellow, white

*Min. line width: 0.2mm

*Min. line space: 0.2mm

*Min. hole diameter: 0.25mm

*Max board size : 600 x 1200mm

*Surface treatment: spray tin, Gold-plating.immersed gold,OSP

*lead time: seven days