Product Details:Place of Origin: Guangdong, China (Mainland) Brand Name: XingDaNumber of Layers:4-Layer Base Material:FR-4,FR2.Taconic,Rogers, CEM-1 CEM-3,ceramicCopper Thickness:1/2 oz min;12 oz max Board Thickness:0.2mm-6.00 mm(8mil-126mil)Min. Hole Size:0.1mm(4mil) Min. Line Width:0.075mm(3mil) Min. Line Spacing:0.1mm(4mil) Surface Finishing:HASL / HASL lead free, Chemical tin, Chemical Solder mask color: green/yellow/black/white/red/blue