... competitive price, quicker delivery and better logistic service…Welcome to send us RFQ! This form is of my company's ... 0mm,+/-0.1mm(tolerance)Copper Thickness1/2OZ-3OZ (35um to 105um),+/-8um(tolerance),purity 99.5%Impedance Control±10% ... 4mm)Pad Tolerance±0.1mm(dia.≥0.6mm)Pad to hole/to pad Tolerance±0.05mm/±0.2mm Solder Mask Pad ... ,+/-2%(tolerance) Certificate SGS,ISO,ROHS,UL, Welcome to visit WALBOND !