艺术家们使用铜作材料，是因为铜是延展性最好的金属之一。
Artists use copper because it's one of the most ductile metals.
克拉黄金(一般混入铜)有一定的延展性，但是比纯金的延展性低一些。
The carat gold alloys generally have good ductility although less than that of pure gold.
铜具有良好的导电性、导热性、耐腐蚀性和延展性等物理化学特性。
It has good electric and heat conductivity, is able to endure causticity.
紫铜纯铜合称为紫铜：它具有很好的导热性、导电性、耐腐蚀性以及延展性。并且可塑性较强是公认的铜门优质材料。
3 copper copper called copper: it has good thermal conductivity, electrical conductivity, corrosion resistance and ductility. And strong plasticity is recognized as the bronze quality materials.
锻铜那是加热铜片，利用金属延展性，用工具敲击铜片造型；
It was heated wrought copper, a metal ductility, copper percussion modeling tools;
锻铜那是加热铜片，利用金属延展性，用工具敲击铜片造型；
It was heated wrought copper, a metal ductility, copper percussion modeling tools;
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