Material: CEM-1,CEM-3,FR-4,PI,Halogen free,HighTG(150-260),Aluminum/Copper/Ceramic, BT Resin,High-frequency Layer Coverage:Single-layer to 20layerBoard Thickness:0.05mm to 6.0mm for Single/Double Sided, 0.3mm up for Multi-layers Copper Thickness: Inner 1/3oz to 10oz Outer 0.5oz to 10oz Minimum Trace :Width/Spacing 3/3mil, samples 2.3mil. Hole Size tolerance: PTH+/-0.075 NPTH +/-0.05mm Aspect RatioVias: <=12:1 Surface Finished : HASL,OSP,Immersion Gold/Silver/Tin,Gold finger,NiPdAu,Gold selectable Kartain Technology CO.,LTD | PCB/PCBA customized solution Thanks ____________________________ Best Wishes Eason KARTAIN TECHNOLOGY CP.,LTD Tel: + 86 15814406156 Skype: chinacircuit Wechat: 409387861