... ROHS Compliant1Layer1-22 layer2MaterialFR-1,FR-2,FR-4,CEM-1,CEM-3,Hight TG,FR4 Halogen Free,3Board ... thickness0.5oz Min.,5.0oz Max10Solder mask colorgreen/black/white/red/blue/yellow11Electronic ComponentHigh precision 0201,0402,0603,fine pitch ... ,fire alarm,CCTV, wireless communication,telecommunication, networking, printer and house controller 2 Layers and 2.5oz PCB with E-Test(PCB board )