... PCB ·High frequency PCB ·High TG (170C) PCB ·Free halogen PCB ·Impedance control PCB ·Different PCB surface finish: ... ,High TG FR4,halogen-free FR4,aluminium,ceramic etc.3.Maximum Size:610mm×1200mm4.Board thickness:0.125mm-6. ... Control Tolerance:l.±5%11.Surface finishing:HASL,LEAD-FREE HASL,Immersion gold,Immersion tin,Immersion Silver,Plated gold ... :UL,ISO9001:2000,ISO14001,SGS,ROHS power board