... delivery 3.good quality with suitable price 4.single-side, multi-layer, rigid-FPC SPECIFICATIONCAPBILITY-FPC 1 Material ... for Lead Free Tin Plating Capability-FPC 3 Cover layerPolyimide, Flexible Solder MaskStiffener materialPolyimide, Polyester, FR4, MetalShielding materialCopperfoil, Silver ... such as: mobile phone, camera, computer, LCD atc. double-side communication flexible pcb board