Copper-Wire-Low-Grade

銅(Copper)

銅線(下) Copper-Wire-Low-Grade

ピカ線(一号銅線、光特号銅線、ピカ銅)や二号銅線よりも質の落ちる銅線です。断面の直径が1.3mm未満のもの(写真左上)、錫(すず)メッキがされているもの(写真右上)、表面が劣化しているもの(写真左下)等があります。細い銅線は炉の中で蒸発して...

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