PCB Board Technical capabilities Layer1,2,4 or 6,upto 12 layersMaterialFR4,CEM1,CEM3,Hight TG,FR4 Halogen Free,FR1,FR2Order Quantity1-500,000Board shape Rectangular,round,slots,cutouts,complex,irregularBoard typeRigid,flexible,rigid-flexibleBoard materialFR-4,glass epoxy,FR4 High Tg,Rohs compliant,Aluminum,Rogers,etcBoard..