2 layersBase material: FR-4 standardBase material thickness: 1.55mmSurface finish: lead-free HALSoldermask colour: blue or blackSilkscreen legend colour: whiteLegend: two sideMin line width: 6milMin Via drill size: 10milMin via pad size: 20milMin pad width: 8milMin clearance: 6milDetailed spec only on request! Small quantities need in regular order for long time business. Show More