... Spacing: 0.5mmSurface Finishing: Immesion goldsolder mask: Greenoutline: CNC/PunchTest: E-testingLayer: 2 Packaging & Delivery Packaging Detail:Inner ... -5days small produce,10days mass production Specifications1.blank pcb boards2.good quality,reasonable price3.quicker delivery4.UL ... ,ISO9000,ISO14000,ROSHWe can manufacture PCB in high quality,more competitive price,quicker delivery ...