China PCB Product Highlights锛?br/> High precision and difficulty blind and buried hole board,Military board with Resin plugged hole or hole in BGA pad. Professional PCB engineer for one-to-one service PCB material guranteed Matte Dark Green (PANTONE 3537C) Product parameter锛?/strong> Layers18L HDI board MaterialFR-4 Thickness2.21mm +/-10% Surface processingENIG(2U") Copper thickness1 oz Drill hole(Min.)0.1mm Min. line space3mil Min. line width3mil Size:150mm*140mm Application area:Military boardChina PCB website:http://www.ibe-technology.net/pcb/