1.Multilayer Electronic Metal Detector PCB 2.UL,SGS,Rohs Certificate 3.Material ... or 6,upto 18 layerOrder Quantity1 to 50,000Board ShapeRetangular,round,slots,cutouts,complex,irregularBoard TypeRigid, Flexible, Rigid-flexibleBoard MaterialFR- ... requirement for pcb&pcb assembly:---- Professional Surface-mounting and Through-hole soldering Technology---- Various sizes like 1206,0805,0603 components SMT ...