@tengxinsheng: Watch the tip trace that line. Pure ASMR. This is fine-line routing on a multilayer PCB. One wrong pass and the whole panel is scrap, so every depth and feed is machine-set, not hand-set. HDI, FPC and rigid-flex boards, built in our own plant in Shenzhen since 2013. #pcb #pcbmanufacturing #satisfying #cncmachining #electronics

Tengxinsheng

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Monday 09 November 2026 15:51:00 GMT