Richlyton is the Fast, Professional and Affordable Choice! Shenzhen Richlyton Electronic Limited is a professional and very refined company.We can provide the best solution of quick turn PCB for small and medium enterprises. Richlyton has an established qualified network of UL, ISO & QS approved manufacturers whose combined expertise and capabilities enable us to support most of your PCB needs anywhere in the world. Our General Capabilities Layer Count: 1-36 Layers Material: FR-4, 170TG, 180Tg, Rogers, ISOLA Taconic Arlon, NELCO Min Plated Thru Holes: 0.006" (0.15 mm) PTH Tolerance: +/- 0.002" (0.05 mm) Min Aspect Ratio: 13:1 (THK:DHS) Copper: 5 oz Inner Start/ 7 oz Outer Start Routing Tolerance: +/- 0.004 Min Trace/Space: 0.003"/0.003" (0.076/0.076mm) Thickness: 0.008"/0.275" Finish: HASL, Lead-free HASL, Hard Gold, Immersion Gold, Immersion Silver, OSP Options: Gold Tabs, Selective Au, Carbon Ink, Peelable Mask, Micro Via, Controlled Impedance, Score, Punch & Return, LASER Drill, Blind Vias and Buried Vias.</p>