2-layer PCB with 2.5OZ Copper thickness Material: FR4 Fireproofing: UL-94V0 Plating: Tin/Lead, copper, Nickel and Gold Thickness: 1 ... .0mm, 1.2mm, 1.6mm selectable Cu thickness: 2.5OZ Solder mask: PC401 ... ,fire alarm,CCTV, wireless communication,telecommunication, networking, printer and house controller 2 Layers and 2.5oz PCB with E-Test(PCB board )