... ! This form is of my company's process capacity for your reference, for more messages, pls contact with us freely!ItemSpecification MaterialFR ... -3OZ (35um to 105um),+/-8um(tolerance),purity 99.5%Impedance Control±10%Bow and Twist MAX.0.75%(SMT)Anti-strip ... ≤100mm)/±0.2mmPunch±0.1mm E-testing pass percent97% pass for the first time,+/-2%(tolerance) Certificate SGS,ISO,ROHS,UL ...