Base Material: FR4, FR-4 / High TG FR-4 / Halogen Free material/Rogers/Arlon/Taconic/Teflo Copper Thickness: 35um/50um, 0.5-3.0oz Board Thickness: 1.6mm, 0.2-6.0mm Min. Hole Size: 0.25mm Min. Line Width: 0.25mm Min. Line Spacing: 0.17mm Surface Finishing: HASL, HASL lead free, Immersion Gold, Immersion Tin, Immersion Silver, Hard Surface Finish: HASL,OSP,Immersion Gold/Silver,ENIG Solder mask: Green. Red. Blue. White. Black.Yellow Silkscreen color: White, yellow, black.. Layers: 1-64L Testing Service: ICT Function,X-ray,AOI Certificate: ISO9001/ROHS