Professional manufacture offer single-sided/double-sided pcb, multilayer pcb, rigid board, flexible pcb, pcb assembly and so on. Double-sided PCBMaterial: FR-4, FR-1, CM-1, high frequencySurface finish: HAL, gold plating, gold finger, immersion silver, immersion gold,Immersion tin, OSPProfile: Routing, punching, V-cut, chamferingMini hole:0.2mmMini line width:4mil(0.1mm)Mini line space:4mil(0.1mm ...