... ,reasonable price; 3.quicker delivery; 4.better logistic service; 5.UL,SGS,ROHS,ISO9000. We can manufacture PCB in higher ... /2OZ-3OZ (35um to 105um),+/-8um(tolerance),purity 99.5%Impedance Control±10%Bow and Twist MAX.0.75%(SMT ... Finish HALtin height≤0.05mmENIGNickel 3-7um,gold:0.5-0.7umOSP/flash gold 0.2-0.5umPealable maskcover all ... ,ISO,ROHS,UL, Welcome to visit WALBOND ! radio pcb circuit board