1.Single layer PCB 2.Immersion gold 3.Delivery in 5-7 ... will strictly follow your needs and requirements.5.Fast delivery with high quality The Capacity ItemManufacture CapbilityMaterialFR-4/Hi Tg FR ... , Black, Blue, Black,Yellow, etc.CertificateROHS, ISO9001:2008, SGS, UL single layer pcb with immersion gold