Buried Magnet Core Buried Magnet Core PCB, Double Side Fr4 Material PCB, High Quality Aluminum PCB, Rigid PCB, Metal Based PCB, Rigid Circuit , Fr4 PCBA Assembly, Halogen Free PCB, Rogers PCB Manufacturer Product Type: Buried Magnet Core Application Field: Power Supply Transformer Layer/Board Thickness: 4L/2.4mm Suface Finisht: ENIG Trace/Space: 12.2/4.2mil Smallest Hole Diameter: 0.5mm Technical Feature: Blind Hole, Buried Magnet Core As an OEM PCB supplier, PCBMAIN can manufacture rigid PCB such as buried magnet core PCB, double side Fr4 material PCB, high quality aluminum PCB, metal based PCB, rigid circuit , Fr4 PCBA assembly, halogen free PCB, rogers PCB, aluminum board, Fr4 PCB manufacturing, thick copper PCB, high tg Fr4 PCB, arlon PCB, PTFE PCB.