Description: Smoke Alarm Circuit Board PCB Assembly Manufacturer, Smoke Alarm Control Board Rapid Proofing and Batch Production, Smoke Detector Circuit Boards One-Stop OEM Production;
| Layer | 4L | Material Thickness | 1.6mm |
|---|---|---|---|
| Surface Finishing | ENIG 1u" | Finished Copper Thickness | 1/1/1/1oz |
| Solder Mask | Blue | Legend Mark | White |
| Material | FR4 | Test | Flying Probe Test |