... 2Layer PCB 3.2mm thickness 2oz Copper Immersion Sn 1. 2-layer Immersion Sn PCB;2. 3.2mm thickness, 2oz Copper;2 ... have more than 10,000 square meters,with more than 500 professional employees,monthly capability is 20,000sqm,5000types.*Advantages: 1 ... you.*Process Capability: 3.2mm Double-sided Layer PCB, Immersion Sn, 2oz Cu