1.Certificate:UL,ROHS 2.Company Management:ISO9001:2000 3.good quality ... Detailed Product DescriptionOur products( single sided PCB) got ISO and UL certificates and meet ROHS standard. ItemDescriptionsProduct rangePCB of Single, Double ... and Multi-layers. MCPCB, High frequency PCB, etcQuality standardsISO, UL, ROHSNumber of Layer1-12LayersMaterialFR-4,Taconic,Rogers, Aluminum-backed Laminate ...