1. UL, ISO9001, ISO14001, ROHS 2. FR4,cem-1 pcb, HASL 3. Competitive Price 4., High speed delivery 5, ... Copper Thickness17um-140umCopper Plating Hole18-40umMin. Trace Width & Line Spacing0.075mm/0.1mm(3mil/4mil)Min. Hole Dimension ... & Twist0.70%Min. Solder Mask Bridge0.0635mmDistance Between Line To Board EdgeOutline: 0.25mm V-CUT: 0.40mmImpedance ... us, your sincere friend! CEM-1 94v0 single layer PCB