... of the leading China high precision traffic control board manufacturers and suppliers with professional high precision traffic control board factory, ... DeliveryPackaging Details:Inner packing:Vacuum bags Outer packing:High standard cartonsDelivery Detail:Pcb:5-7 days;Pcba:15 ... 075mm(3mil)8Surface finish/treatmentHALS/HALS lead free,Chemical tin,Chemical Gold,Immersion gold Immersion Silver/Gold,Osp, ...