antenna pcb 1.UL,ROHS,ISO,SGS,Layer:2-20 2. ... ,Line:3mil Immersion gold circuit pcb, pcba & fpc , multilayer pcb, antenna pcb Our Factory Manufacture Capability ItemManufacture CapabilityMaterialFR-4 / Hi Tg ... :1-5u''OSP0.2-0.5umCertificateROHS, SGS, UL, ISO9001: 2008. if you have specific requirements, please feel free to contact us ...