Kwi-PCB proofing, umaleko we-lead-tin resist is pre-plated kwi-copper foil part ukuze igcinwe kumaleko angaphandle ebhodi, oko kukuthi, inxalenye yegraphic yesekethe, emva koko ifoyile yobhedu eseleyo ifakwe ngokwekhemikhali. kude, okubizwa ngokuba yi-etching.Ke, kubungqina bePCB, zeziphi iingxaki...
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