At present, the domestic seven big copper smelting enterprises are close consultation, so that the 2012 pure copper smelting processing problems and international related ore enterprises negotiations.
目前，国内七大铜冶炼企业正在紧密磋商，以便就2012年精铜冶炼加工费问题与国际相关矿企展开谈判。
Damping alloy was composed of smelting manganese and pure copper, some elements were added into the alloy in order to improve its property.
使用火法冶炼的金属锰与铜组成锰基减振合金系，并为改善性能而填加了其他元素。
Vacuum smelting company, Special casting for the feature, the product of high pure copper casting, high strength, high conductivity copper alloy and wear-resistant copper-based alloys.
公司主要以真空冶炼、特种铸造为特色，产品以高纯铜铸件和高强度、高导电铜合金及耐磨铜合金为主。
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