1.Building automation system PCB; 2.good quality,reasonable price; 3.quicker delivery; ... 4-10)Board Thickness0.3mm-3.0mm,+/-0.1mm(tolerance)Copper Thickness1/2OZ-3OZ (35um to 105um),+/-8um(tolerance),purity ... 10 milBGA Pitch 20 milMin Pad Space 4mil(SMT)Plating Copper Thickness15um Hole Hole Size0.25mm--6.2mmHole Position Tolerance± ... ISO,ROHS,UL, Welcome to visit WALBOND ! Building automation system PCB