... one of the leading China high precision traffic control board manufacturers and suppliers with professional high precision traffic control board factory, we ... & DeliveryPackaging Details:Inner packing:Vacuum bags Outer packing:High standard cartonsDelivery Detail:Pcb:5-7 days;Pcba:15- ... PCB Manufacturing1layer1-18 layer2MaterialFR-4,CEM-1,CEM-3,High TG,FR4 Halogen Free,FR-1,FR-23Board thickness0 ...