Tshawb nrhiav cov lus qhia dav dav rau ob txheej txheej hloov tau yooj yim luam tawm Circuit Board (PCB) tsim, tsim, hom, qauv tsim, tsim khoom, thiab kev siv. Tau txais kev nkag siab txog qhov tseem ceeb ntawm kev tsim qauv tsim nyog, Capel qhov kev txawj ntse, thiab cov qauv yav tom ntej hauv kev lag luam. 1. Taw qhia rau ob txheej txheej flexib...
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