4 Layers Multi-Layer Rigid PCB Printed Circuit Board with Immersion Gold for Electronics Communication. Fast Turnaround Time: Quotation in 1 hour, samples in 2-3 days, mass production 3-15 days. High Precision Capabilities: Min line width 3mil, min hole size 0.1mm, tolerance 0.05mm. Wide Customization Options: 1-20 layers, various materials (FR-4, Rogers), and surface finishes. Strict Quality Control: ISO 9001, IATF16949 certified; 100% testing before shipment. Low MOQ Accepted: We accept small orders and even single piece orders for testing. Large Scale Production: 50,000 sqm facility with 1,100 workers for high volume output. Multiple Surface Finishes: ENIG, OSP, HASL, Chem Tin/Sn, Flash Gold available. Global Shipping Support: Supports DHL, UPS, FedEx, TNT for worldwide delivery.