Our company specializes in the manufacturing and supply of printed circuit boards to the global electronics industry for several years.offers a full range of PCB products such as single-sided,double-sided and multiplayer pcbs* Number of Layers: 1-16 layers *Base Material: FR-4,Taconic,Rogers, CEM-1 CEM-3,crock *Copper Thickness: 1/2 oz min; 12 oz max *Board Thickness: 0.2mm-6mm(8mil-126mil) *Min. Hole Size: 0.25mm Min. *Line Width: 0.075mm(3mil) *Min. Line Spacing: 0.1mm(3mil/4mil) *Surface Finishing: HASL / HASL lead free, Chemical tin, Chemical Gold