4-layer industrial impedance printed circuit boards pcb Industrial control china pcb instrumentation electric circuit board blank.
As a professional OEM manufacturer for industrial-grade PCB, we specialize in custom 4-layer impedance controlled rigid PCB and flexible circuit board solutions. Our products adopt immersion gold surface finishing and support blind & buried vias, with strict characteristic impedance control. Designed for industrial control and surveying mapping instrumentation equipment, our PCBs pass multi-item reliability tests including thermal shock and peel strength test, supporting smallbatch sample.
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