鄉鎮企業的東東,PCB腐蝕的線斷了,然後跨了兩根線,跨的還不在焊點上在很細的銅皮上,虛焊或者焊膏有腐蝕性斷了。
鄉鎮企業的東東,PCB腐蝕的線斷了,然後跨了兩根線,跨的還不在焊點上在很細的銅皮上,虛焊或者焊膏有腐蝕性斷了。
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