... 2.Certification:UL, ISO9001 3.Prompt delivery 4.Excellent quality FR-4 pcb boards manufacturerSpecification:1.Factory Price 2.Certification:UL ... Order Accepted - Quality Approval ItemCapalitily1.Layer1-182.Basic MaterialCEM-3,FR-4,CEM-13.Board Thickness0.2mm-3.2mm (8mil-126mil ... (6mil) If you interested it, send us Gerber File ,pls. FR-4 pcb boards manufacturer