Ihe dị iche na ngwa nke aluminom mkpụrụ na iko fiber osisi 1. Fiberglass osisi (FR4, otu akụkụ, abụọ-akụkụ, multilayer PCB sekit osisi, impedance osisi, kpuru kpuru via osisi), adabara kọmputa, mobile phones na ndị ọzọ electronic digital digital ngwaahịa. Enwere ọtụtụ ụzọ...
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