Copper and copper alloys are one of the most widely used metals due to their excellent electric conductivity, heat conductivity, and welding ability.
铜和铜合金具有优良的导电性、导热性和可焊性，是目前应用最广的金属材料之一。
Copper and copper alloys are one of the most widely used metals due to their excellent electric conductivity, heat conductivity, and welding ability.
铜和铜合金具有优良的导电性、导热性和可焊性，是目前应用最广的金属材料之一。
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