FR-4 Laminate 4 layer, HASL, Multilayers PCB High-Frequency PCB High Quality BGA PCB Board 4layer PCB manufacturer Model Number: 4layer Material: FR4 Tg135 Copper Thickness:1OZ Board Thikness:1.6mm Surface Finishing: HASL(LF) Min.Hole Siz:0.25MM Min Line space: 0.075mm(3mil) Min.Line Width:0.075mm(3mil) Solder mask color : Green Silk screen color: white Certificate: Rohs, ISO9001, UL Ckaging & Delivery Packaging Details Inner packing :Vacuum Package  Outer packing:Standard Carton  Or as customer's require Delivery Time 4-7 days after getting your payment Service we offer: PCB manufacturing electronics component sourcing PCB design Engineering service PCB Copy & Assembly Prototyping Plastics and molds Files needed for quoation: Gerber files of pcb BOM (Bill of material) A sampleï¼?if no gerberï¼? Standard Lead time For prototypes and Medium Qty Layers count PCB Prototypes Massï¼?â?¤1¼? Expedited working days Standard working days Expedited working days Standard working days 1 layer 1 working day 3 working days 3 working days 5 working days 2 layers 1 working day 5 working days 4 working days 7 working days 4 layers 2 working days 6 working days 6 working days 9 working days 6 layers 4 working days 7 working days 8 working days 11 working days 8 layers 5 working days 8 working days 9 working days 12 working days