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Copper foil, a kind of negative electrolytic material, is deposited on base layer of PCB to form continuous metal foil and it is also named as the conductor of PCB. It is easily bonded to the insulating layer and able to be printed with a protective layer and form circuit pattern after etching. ...Baca selengkapnya -
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SHANGHAI, Mar 21 (Civen Metal) – The operating rates at Chinese copper foil producers averaged 86.34% in February, down 2.84 percentage points MoM, according to Civen Metal survey. The operating rates of large, medium-sized and small enterprises were 89.71%, 83.58% and 83.03% respectively. ...Baca selengkapnya -
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Copper kills corona virus. Apakah ini benar?
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