... thickness 2oz Copper Immersion Sn 1. 2-layer Immersion Sn PCB;2. 3.2mm thickness, 2oz Copper;2. High ... quality&competitive price 3. ROHS,UL,SGS,ISO9000, ISO 14000, TS169494. ... Impedance Controlled Board and Heavy Copper PCBs and etc; 3. The shortest lead time for double-sided board ... we can quote for you.*Process Capability: 3.2mm Double-sided Layer PCB, Immersion Sn, 2oz Cu